1 /*******************************************************************************
2 * This file contains tcm implementation using v4 configfs fabric infrastructure
3 * for QLogic target mode HBAs
5 * (c) Copyright 2010-2013 Datera, Inc.
7 * Author: Nicholas A. Bellinger <nab@daterainc.com>
9 * tcm_qla2xxx_parse_wwn() and tcm_qla2xxx_format_wwn() contains code from
10 * the TCM_FC / Open-FCoE.org fabric module.
12 * Copyright (c) 2010 Cisco Systems, Inc
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.
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 ****************************************************************************/
26 #include <linux/module.h>
27 #include <linux/moduleparam.h>
28 #include <linux/utsname.h>
29 #include <linux/vmalloc.h>
30 #include <linux/init.h>
31 #include <linux/list.h>
32 #include <linux/slab.h>
33 #include <linux/kthread.h>
34 #include <linux/types.h>
35 #include <linux/string.h>
36 #include <linux/configfs.h>
37 #include <linux/ctype.h>
38 #include <asm/unaligned.h>
39 #include <scsi/scsi.h>
40 #include <scsi/scsi_host.h>
41 #include <scsi/scsi_device.h>
42 #include <scsi/scsi_cmnd.h>
43 #include <target/target_core_base.h>
44 #include <target/target_core_fabric.h>
47 #include "qla_target.h"
48 #include "tcm_qla2xxx.h"
50 static struct workqueue_struct *tcm_qla2xxx_free_wq;
51 static struct workqueue_struct *tcm_qla2xxx_cmd_wq;
55 * If strict, we require lower-case hex and colon separators to be sure
56 * the name is the same as what would be generated by ft_format_wwn()
57 * so the name and wwn are mapped one-to-one.
59 static ssize_t tcm_qla2xxx_parse_wwn(const char *name, u64 *wwn, int strict)
69 for (cp = name; cp < &name[TCM_QLA2XXX_NAMELEN - 1]; cp++) {
71 if (c == '\n' && cp[1] == '\0')
73 if (strict && pos++ == 2 && byte++ < 7) {
82 if (strict && byte != 8)
89 else if (isxdigit(c) && (islower(c) || !strict))
90 nibble = tolower(c) - 'a' + 10;
93 *wwn = (*wwn << 4) | nibble;
97 pr_debug("err %u len %zu pos %u byte %u\n",
98 err, cp - name, pos, byte);
102 static ssize_t tcm_qla2xxx_format_wwn(char *buf, size_t len, u64 wwn)
106 put_unaligned_be64(wwn, b);
107 return snprintf(buf, len,
108 "%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x:%2.2x",
109 b[0], b[1], b[2], b[3], b[4], b[5], b[6], b[7]);
112 static char *tcm_qla2xxx_get_fabric_name(void)
118 * From drivers/scsi/scsi_transport_fc.c:fc_parse_wwn
120 static int tcm_qla2xxx_npiv_extract_wwn(const char *ns, u64 *nm)
125 memset(wwn, 0, sizeof(wwn));
127 /* Validate and store the new name */
128 for (i = 0, j = 0; i < 16; i++) {
131 value = hex_to_bin(*ns++);
133 j = (j << 4) | value;
143 *nm = wwn_to_u64(wwn);
148 * This parsing logic follows drivers/scsi/scsi_transport_fc.c:
149 * store_fc_host_vport_create()
151 static int tcm_qla2xxx_npiv_parse_wwn(
157 unsigned int cnt = count;
163 /* count may include a LF at end of string */
164 if (name[cnt-1] == '\n' || name[cnt-1] == 0)
167 /* validate we have enough characters for WWPN */
168 if ((cnt != (16+1+16)) || (name[16] != ':'))
171 rc = tcm_qla2xxx_npiv_extract_wwn(&name[0], wwpn);
175 rc = tcm_qla2xxx_npiv_extract_wwn(&name[17], wwnn);
182 static char *tcm_qla2xxx_npiv_get_fabric_name(void)
184 return "qla2xxx_npiv";
187 static char *tcm_qla2xxx_get_fabric_wwn(struct se_portal_group *se_tpg)
189 struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
190 struct tcm_qla2xxx_tpg, se_tpg);
191 struct tcm_qla2xxx_lport *lport = tpg->lport;
193 return lport->lport_naa_name;
196 static u16 tcm_qla2xxx_get_tag(struct se_portal_group *se_tpg)
198 struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
199 struct tcm_qla2xxx_tpg, se_tpg);
200 return tpg->lport_tpgt;
203 static int tcm_qla2xxx_check_demo_mode(struct se_portal_group *se_tpg)
205 struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
206 struct tcm_qla2xxx_tpg, se_tpg);
208 return tpg->tpg_attrib.generate_node_acls;
211 static int tcm_qla2xxx_check_demo_mode_cache(struct se_portal_group *se_tpg)
213 struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
214 struct tcm_qla2xxx_tpg, se_tpg);
216 return tpg->tpg_attrib.cache_dynamic_acls;
219 static int tcm_qla2xxx_check_demo_write_protect(struct se_portal_group *se_tpg)
221 struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
222 struct tcm_qla2xxx_tpg, se_tpg);
224 return tpg->tpg_attrib.demo_mode_write_protect;
227 static int tcm_qla2xxx_check_prod_write_protect(struct se_portal_group *se_tpg)
229 struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
230 struct tcm_qla2xxx_tpg, se_tpg);
232 return tpg->tpg_attrib.prod_mode_write_protect;
235 static int tcm_qla2xxx_check_demo_mode_login_only(struct se_portal_group *se_tpg)
237 struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
238 struct tcm_qla2xxx_tpg, se_tpg);
240 return tpg->tpg_attrib.demo_mode_login_only;
243 static int tcm_qla2xxx_check_prot_fabric_only(struct se_portal_group *se_tpg)
245 struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
246 struct tcm_qla2xxx_tpg, se_tpg);
248 return tpg->tpg_attrib.fabric_prot_type;
251 static u32 tcm_qla2xxx_tpg_get_inst_index(struct se_portal_group *se_tpg)
253 struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
254 struct tcm_qla2xxx_tpg, se_tpg);
256 return tpg->lport_tpgt;
259 static void tcm_qla2xxx_complete_mcmd(struct work_struct *work)
261 struct qla_tgt_mgmt_cmd *mcmd = container_of(work,
262 struct qla_tgt_mgmt_cmd, free_work);
264 transport_generic_free_cmd(&mcmd->se_cmd, 0);
268 * Called from qla_target_template->free_mcmd(), and will call
269 * tcm_qla2xxx_release_cmd() via normal struct target_core_fabric_ops
270 * release callback. qla_hw_data->hardware_lock is expected to be held
272 static void tcm_qla2xxx_free_mcmd(struct qla_tgt_mgmt_cmd *mcmd)
274 INIT_WORK(&mcmd->free_work, tcm_qla2xxx_complete_mcmd);
275 queue_work(tcm_qla2xxx_free_wq, &mcmd->free_work);
278 static void tcm_qla2xxx_complete_free(struct work_struct *work)
280 struct qla_tgt_cmd *cmd = container_of(work, struct qla_tgt_cmd, work);
284 WARN_ON(cmd->trc_flags & TRC_CMD_FREE);
286 cmd->qpair->tgt_counters.qla_core_ret_sta_ctio++;
287 cmd->trc_flags |= TRC_CMD_FREE;
288 transport_generic_free_cmd(&cmd->se_cmd, 0);
292 * Called from qla_target_template->free_cmd(), and will call
293 * tcm_qla2xxx_release_cmd via normal struct target_core_fabric_ops
294 * release callback. qla_hw_data->hardware_lock is expected to be held
296 static void tcm_qla2xxx_free_cmd(struct qla_tgt_cmd *cmd)
298 cmd->qpair->tgt_counters.core_qla_free_cmd++;
301 WARN_ON(cmd->trc_flags & TRC_CMD_DONE);
302 cmd->trc_flags |= TRC_CMD_DONE;
304 INIT_WORK(&cmd->work, tcm_qla2xxx_complete_free);
305 queue_work_on(smp_processor_id(), tcm_qla2xxx_free_wq, &cmd->work);
309 * Called from struct target_core_fabric_ops->check_stop_free() context
311 static int tcm_qla2xxx_check_stop_free(struct se_cmd *se_cmd)
313 struct qla_tgt_cmd *cmd;
315 if ((se_cmd->se_cmd_flags & SCF_SCSI_TMR_CDB) == 0) {
316 cmd = container_of(se_cmd, struct qla_tgt_cmd, se_cmd);
317 cmd->trc_flags |= TRC_CMD_CHK_STOP;
320 return target_put_sess_cmd(se_cmd);
323 /* tcm_qla2xxx_release_cmd - Callback from TCM Core to release underlying
324 * fabric descriptor @se_cmd command to release
326 static void tcm_qla2xxx_release_cmd(struct se_cmd *se_cmd)
328 struct qla_tgt_cmd *cmd;
330 if (se_cmd->se_cmd_flags & SCF_SCSI_TMR_CDB) {
331 struct qla_tgt_mgmt_cmd *mcmd = container_of(se_cmd,
332 struct qla_tgt_mgmt_cmd, se_cmd);
337 cmd = container_of(se_cmd, struct qla_tgt_cmd, se_cmd);
341 static void tcm_qla2xxx_release_session(struct kref *kref)
343 struct fc_port *sess = container_of(kref,
344 struct fc_port, sess_kref);
346 qlt_unreg_sess(sess);
349 static void tcm_qla2xxx_put_sess(struct fc_port *sess)
354 assert_spin_locked(&sess->vha->hw->tgt.sess_lock);
355 kref_put(&sess->sess_kref, tcm_qla2xxx_release_session);
358 static void tcm_qla2xxx_close_session(struct se_session *se_sess)
360 struct fc_port *sess = se_sess->fabric_sess_ptr;
361 struct scsi_qla_host *vha;
367 spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
368 target_sess_cmd_list_set_waiting(se_sess);
369 tcm_qla2xxx_put_sess(sess);
370 spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
373 static u32 tcm_qla2xxx_sess_get_index(struct se_session *se_sess)
378 static int tcm_qla2xxx_write_pending(struct se_cmd *se_cmd)
380 struct qla_tgt_cmd *cmd = container_of(se_cmd,
381 struct qla_tgt_cmd, se_cmd);
384 /* Cmd can loop during Q-full. tcm_qla2xxx_aborted_task
385 * can get ahead of this cmd. tcm_qla2xxx_aborted_task
386 * already kick start the free.
388 pr_debug("write_pending aborted cmd[%p] refcount %d "
389 "transport_state %x, t_state %x, se_cmd_flags %x\n",
390 cmd, kref_read(&cmd->se_cmd.cmd_kref),
391 cmd->se_cmd.transport_state,
393 cmd->se_cmd.se_cmd_flags);
396 cmd->trc_flags |= TRC_XFR_RDY;
397 cmd->bufflen = se_cmd->data_length;
398 cmd->dma_data_direction = target_reverse_dma_direction(se_cmd);
400 cmd->sg_cnt = se_cmd->t_data_nents;
401 cmd->sg = se_cmd->t_data_sg;
403 cmd->prot_sg_cnt = se_cmd->t_prot_nents;
404 cmd->prot_sg = se_cmd->t_prot_sg;
405 cmd->blk_sz = se_cmd->se_dev->dev_attrib.block_size;
409 * qla_target.c:qlt_rdy_to_xfer() will call pci_map_sg() to setup
410 * the SGL mappings into PCIe memory for incoming FCP WRITE data.
412 return qlt_rdy_to_xfer(cmd);
415 static int tcm_qla2xxx_write_pending_status(struct se_cmd *se_cmd)
419 * Check for WRITE_PENDING status to determine if we need to wait for
420 * CTIO aborts to be posted via hardware in tcm_qla2xxx_handle_data().
422 spin_lock_irqsave(&se_cmd->t_state_lock, flags);
423 if (se_cmd->t_state == TRANSPORT_WRITE_PENDING ||
424 se_cmd->t_state == TRANSPORT_COMPLETE_QF_WP) {
425 spin_unlock_irqrestore(&se_cmd->t_state_lock, flags);
426 wait_for_completion_timeout(&se_cmd->t_transport_stop_comp,
430 spin_unlock_irqrestore(&se_cmd->t_state_lock, flags);
435 static void tcm_qla2xxx_set_default_node_attrs(struct se_node_acl *nacl)
440 static int tcm_qla2xxx_get_cmd_state(struct se_cmd *se_cmd)
442 if (!(se_cmd->se_cmd_flags & SCF_SCSI_TMR_CDB)) {
443 struct qla_tgt_cmd *cmd = container_of(se_cmd,
444 struct qla_tgt_cmd, se_cmd);
452 * Called from process context in qla_target.c:qlt_do_work() code
454 static int tcm_qla2xxx_handle_cmd(scsi_qla_host_t *vha, struct qla_tgt_cmd *cmd,
455 unsigned char *cdb, uint32_t data_length, int fcp_task_attr,
456 int data_dir, int bidi)
458 struct se_cmd *se_cmd = &cmd->se_cmd;
459 struct se_session *se_sess;
460 struct fc_port *sess;
461 #ifdef CONFIG_TCM_QLA2XXX_DEBUG
462 struct se_portal_group *se_tpg;
463 struct tcm_qla2xxx_tpg *tpg;
465 int flags = TARGET_SCF_ACK_KREF;
468 flags |= TARGET_SCF_BIDI_OP;
470 if (se_cmd->cpuid != WORK_CPU_UNBOUND)
471 flags |= TARGET_SCF_USE_CPUID;
475 pr_err("Unable to locate struct fc_port from qla_tgt_cmd\n");
479 se_sess = sess->se_sess;
481 pr_err("Unable to locate active struct se_session\n");
485 #ifdef CONFIG_TCM_QLA2XXX_DEBUG
486 se_tpg = se_sess->se_tpg;
487 tpg = container_of(se_tpg, struct tcm_qla2xxx_tpg, se_tpg);
488 if (unlikely(tpg->tpg_attrib.jam_host)) {
489 /* return, and dont run target_submit_cmd,discarding command */
494 cmd->qpair->tgt_counters.qla_core_sbt_cmd++;
495 return target_submit_cmd(se_cmd, se_sess, cdb, &cmd->sense_buffer[0],
496 cmd->unpacked_lun, data_length, fcp_task_attr,
500 static void tcm_qla2xxx_handle_data_work(struct work_struct *work)
502 struct qla_tgt_cmd *cmd = container_of(work, struct qla_tgt_cmd, work);
506 * Ensure that the complete FCP WRITE payload has been received.
507 * Otherwise return an exception via CHECK_CONDITION status.
511 spin_lock_irqsave(&cmd->cmd_lock, flags);
514 cmd->data_work_free = 1;
515 spin_unlock_irqrestore(&cmd->cmd_lock, flags);
517 tcm_qla2xxx_free_cmd(cmd);
520 spin_unlock_irqrestore(&cmd->cmd_lock, flags);
522 cmd->qpair->tgt_counters.qla_core_ret_ctio++;
523 if (!cmd->write_data_transferred) {
525 * Check if se_cmd has already been aborted via LUN_RESET, and
526 * waiting upon completion in tcm_qla2xxx_write_pending_status()
528 if (cmd->se_cmd.transport_state & CMD_T_ABORTED) {
529 complete(&cmd->se_cmd.t_transport_stop_comp);
533 switch (cmd->dif_err_code) {
536 TCM_LOGICAL_BLOCK_GUARD_CHECK_FAILED;
540 TCM_LOGICAL_BLOCK_REF_TAG_CHECK_FAILED;
544 TCM_LOGICAL_BLOCK_APP_TAG_CHECK_FAILED;
551 if (cmd->se_cmd.pi_err)
552 transport_generic_request_failure(&cmd->se_cmd,
555 transport_generic_request_failure(&cmd->se_cmd,
556 TCM_CHECK_CONDITION_ABORT_CMD);
561 return target_execute_cmd(&cmd->se_cmd);
565 * Called from qla_target.c:qlt_do_ctio_completion()
567 static void tcm_qla2xxx_handle_data(struct qla_tgt_cmd *cmd)
569 cmd->trc_flags |= TRC_DATA_IN;
571 INIT_WORK(&cmd->work, tcm_qla2xxx_handle_data_work);
572 queue_work_on(smp_processor_id(), tcm_qla2xxx_free_wq, &cmd->work);
575 static int tcm_qla2xxx_chk_dif_tags(uint32_t tag)
580 static int tcm_qla2xxx_dif_tags(struct qla_tgt_cmd *cmd,
581 uint16_t *pfw_prot_opts)
583 struct se_cmd *se_cmd = &cmd->se_cmd;
585 if (!(se_cmd->prot_checks & TARGET_DIF_CHECK_GUARD))
586 *pfw_prot_opts |= PO_DISABLE_GUARD_CHECK;
588 if (!(se_cmd->prot_checks & TARGET_DIF_CHECK_APPTAG))
589 *pfw_prot_opts |= PO_DIS_APP_TAG_VALD;
595 * Called from qla_target.c:qlt_issue_task_mgmt()
597 static int tcm_qla2xxx_handle_tmr(struct qla_tgt_mgmt_cmd *mcmd, u64 lun,
598 uint16_t tmr_func, uint32_t tag)
600 struct fc_port *sess = mcmd->sess;
601 struct se_cmd *se_cmd = &mcmd->se_cmd;
602 int transl_tmr_func = 0;
603 int flags = TARGET_SCF_ACK_KREF;
607 pr_debug("%ld: ABTS received\n", sess->vha->host_no);
608 transl_tmr_func = TMR_ABORT_TASK;
609 flags |= TARGET_SCF_LOOKUP_LUN_FROM_TAG;
611 case QLA_TGT_2G_ABORT_TASK:
612 pr_debug("%ld: 2G Abort Task received\n", sess->vha->host_no);
613 transl_tmr_func = TMR_ABORT_TASK;
615 case QLA_TGT_CLEAR_ACA:
616 pr_debug("%ld: CLEAR_ACA received\n", sess->vha->host_no);
617 transl_tmr_func = TMR_CLEAR_ACA;
619 case QLA_TGT_TARGET_RESET:
620 pr_debug("%ld: TARGET_RESET received\n", sess->vha->host_no);
621 transl_tmr_func = TMR_TARGET_WARM_RESET;
623 case QLA_TGT_LUN_RESET:
624 pr_debug("%ld: LUN_RESET received\n", sess->vha->host_no);
625 transl_tmr_func = TMR_LUN_RESET;
627 case QLA_TGT_CLEAR_TS:
628 pr_debug("%ld: CLEAR_TS received\n", sess->vha->host_no);
629 transl_tmr_func = TMR_CLEAR_TASK_SET;
631 case QLA_TGT_ABORT_TS:
632 pr_debug("%ld: ABORT_TS received\n", sess->vha->host_no);
633 transl_tmr_func = TMR_ABORT_TASK_SET;
636 pr_debug("%ld: Unknown task mgmt fn 0x%x\n",
637 sess->vha->host_no, tmr_func);
641 return target_submit_tmr(se_cmd, sess->se_sess, NULL, lun, mcmd,
642 transl_tmr_func, GFP_ATOMIC, tag, flags);
645 static int tcm_qla2xxx_queue_data_in(struct se_cmd *se_cmd)
647 struct qla_tgt_cmd *cmd = container_of(se_cmd,
648 struct qla_tgt_cmd, se_cmd);
651 /* Cmd can loop during Q-full. tcm_qla2xxx_aborted_task
652 * can get ahead of this cmd. tcm_qla2xxx_aborted_task
653 * already kick start the free.
655 pr_debug("queue_data_in aborted cmd[%p] refcount %d "
656 "transport_state %x, t_state %x, se_cmd_flags %x\n",
657 cmd, kref_read(&cmd->se_cmd.cmd_kref),
658 cmd->se_cmd.transport_state,
660 cmd->se_cmd.se_cmd_flags);
664 cmd->trc_flags |= TRC_XMIT_DATA;
665 cmd->bufflen = se_cmd->data_length;
666 cmd->dma_data_direction = target_reverse_dma_direction(se_cmd);
668 cmd->sg_cnt = se_cmd->t_data_nents;
669 cmd->sg = se_cmd->t_data_sg;
672 cmd->prot_sg_cnt = se_cmd->t_prot_nents;
673 cmd->prot_sg = se_cmd->t_prot_sg;
674 cmd->blk_sz = se_cmd->se_dev->dev_attrib.block_size;
678 * Now queue completed DATA_IN the qla2xxx LLD and response ring
680 return qlt_xmit_response(cmd, QLA_TGT_XMIT_DATA|QLA_TGT_XMIT_STATUS,
681 se_cmd->scsi_status);
684 static int tcm_qla2xxx_queue_status(struct se_cmd *se_cmd)
686 struct qla_tgt_cmd *cmd = container_of(se_cmd,
687 struct qla_tgt_cmd, se_cmd);
688 int xmit_type = QLA_TGT_XMIT_STATUS;
692 * Cmd can loop during Q-full. tcm_qla2xxx_aborted_task
693 * can get ahead of this cmd. tcm_qla2xxx_aborted_task
694 * already kick start the free.
697 "queue_data_in aborted cmd[%p] refcount %d transport_state %x, t_state %x, se_cmd_flags %x\n",
698 cmd, kref_read(&cmd->se_cmd.cmd_kref),
699 cmd->se_cmd.transport_state, cmd->se_cmd.t_state,
700 cmd->se_cmd.se_cmd_flags);
703 cmd->bufflen = se_cmd->data_length;
707 cmd->dma_data_direction = target_reverse_dma_direction(se_cmd);
708 if (cmd->trc_flags & TRC_XMIT_STATUS) {
709 pr_crit("Multiple calls for status = %p.\n", cmd);
712 cmd->trc_flags |= TRC_XMIT_STATUS;
714 if (se_cmd->data_direction == DMA_FROM_DEVICE) {
716 * For FCP_READ with CHECK_CONDITION status, clear cmd->bufflen
717 * for qla_tgt_xmit_response LLD code
719 if (se_cmd->se_cmd_flags & SCF_OVERFLOW_BIT) {
720 se_cmd->se_cmd_flags &= ~SCF_OVERFLOW_BIT;
721 se_cmd->residual_count = 0;
723 se_cmd->se_cmd_flags |= SCF_UNDERFLOW_BIT;
724 se_cmd->residual_count += se_cmd->data_length;
729 * Now queue status response to qla2xxx LLD code and response ring
731 return qlt_xmit_response(cmd, xmit_type, se_cmd->scsi_status);
734 static void tcm_qla2xxx_queue_tm_rsp(struct se_cmd *se_cmd)
736 struct se_tmr_req *se_tmr = se_cmd->se_tmr_req;
737 struct qla_tgt_mgmt_cmd *mcmd = container_of(se_cmd,
738 struct qla_tgt_mgmt_cmd, se_cmd);
740 pr_debug("queue_tm_rsp: mcmd: %p func: 0x%02x response: 0x%02x\n",
741 mcmd, se_tmr->function, se_tmr->response);
743 * Do translation between TCM TM response codes and
744 * QLA2xxx FC TM response codes.
746 switch (se_tmr->response) {
747 case TMR_FUNCTION_COMPLETE:
748 mcmd->fc_tm_rsp = FC_TM_SUCCESS;
750 case TMR_TASK_DOES_NOT_EXIST:
751 mcmd->fc_tm_rsp = FC_TM_BAD_CMD;
753 case TMR_FUNCTION_REJECTED:
754 mcmd->fc_tm_rsp = FC_TM_REJECT;
756 case TMR_LUN_DOES_NOT_EXIST:
758 mcmd->fc_tm_rsp = FC_TM_FAILED;
762 * Queue the TM response to QLA2xxx LLD to build a
763 * CTIO response packet.
765 qlt_xmit_tm_rsp(mcmd);
768 #define DATA_WORK_NOT_FREE(_cmd) (_cmd->data_work && !_cmd->data_work_free)
769 static void tcm_qla2xxx_aborted_task(struct se_cmd *se_cmd)
771 struct qla_tgt_cmd *cmd = container_of(se_cmd,
772 struct qla_tgt_cmd, se_cmd);
775 if (qlt_abort_cmd(cmd))
778 spin_lock_irqsave(&cmd->cmd_lock, flags);
779 if ((cmd->state == QLA_TGT_STATE_NEW)||
780 ((cmd->state == QLA_TGT_STATE_DATA_IN) &&
781 DATA_WORK_NOT_FREE(cmd))) {
782 cmd->data_work_free = 1;
783 spin_unlock_irqrestore(&cmd->cmd_lock, flags);
785 * cmd has not reached fw, Use this trigger to free it.
787 tcm_qla2xxx_free_cmd(cmd);
790 spin_unlock_irqrestore(&cmd->cmd_lock, flags);
795 static void tcm_qla2xxx_clear_sess_lookup(struct tcm_qla2xxx_lport *,
796 struct tcm_qla2xxx_nacl *, struct fc_port *);
798 * Expected to be called with struct qla_hw_data->tgt.sess_lock held
800 static void tcm_qla2xxx_clear_nacl_from_fcport_map(struct fc_port *sess)
802 struct se_node_acl *se_nacl = sess->se_sess->se_node_acl;
803 struct se_portal_group *se_tpg = se_nacl->se_tpg;
804 struct se_wwn *se_wwn = se_tpg->se_tpg_wwn;
805 struct tcm_qla2xxx_lport *lport = container_of(se_wwn,
806 struct tcm_qla2xxx_lport, lport_wwn);
807 struct tcm_qla2xxx_nacl *nacl = container_of(se_nacl,
808 struct tcm_qla2xxx_nacl, se_node_acl);
811 pr_debug("fc_rport domain: port_id 0x%06x\n", nacl->nport_id);
813 node = btree_remove32(&lport->lport_fcport_map, nacl->nport_id);
814 if (WARN_ON(node && (node != se_nacl))) {
816 * The nacl no longer matches what we think it should be.
817 * Most likely a new dynamic acl has been added while
818 * someone dropped the hardware lock. It clearly is a
819 * bug elsewhere, but this bit can't make things worse.
821 btree_insert32(&lport->lport_fcport_map, nacl->nport_id,
825 pr_debug("Removed from fcport_map: %p for WWNN: 0x%016LX, port_id: 0x%06x\n",
826 se_nacl, nacl->nport_wwnn, nacl->nport_id);
828 * Now clear the se_nacl and session pointers from our HW lport lookup
829 * table mapping for this initiator's fabric S_ID and LOOP_ID entries.
831 * This is done ahead of callbacks into tcm_qla2xxx_free_session() ->
832 * target_wait_for_sess_cmds() before the session waits for outstanding
833 * I/O to complete, to avoid a race between session shutdown execution
834 * and incoming ATIOs or TMRs picking up a stale se_node_act reference.
836 tcm_qla2xxx_clear_sess_lookup(lport, nacl, sess);
839 static void tcm_qla2xxx_shutdown_sess(struct fc_port *sess)
841 assert_spin_locked(&sess->vha->hw->tgt.sess_lock);
842 target_sess_cmd_list_set_waiting(sess->se_sess);
845 static int tcm_qla2xxx_init_nodeacl(struct se_node_acl *se_nacl,
848 struct tcm_qla2xxx_nacl *nacl =
849 container_of(se_nacl, struct tcm_qla2xxx_nacl, se_node_acl);
852 if (tcm_qla2xxx_parse_wwn(name, &wwnn, 1) < 0)
855 nacl->nport_wwnn = wwnn;
856 tcm_qla2xxx_format_wwn(&nacl->nport_name[0], TCM_QLA2XXX_NAMELEN, wwnn);
861 /* Start items for tcm_qla2xxx_tpg_attrib_cit */
863 #define DEF_QLA_TPG_ATTRIB(name) \
865 static ssize_t tcm_qla2xxx_tpg_attrib_##name##_show( \
866 struct config_item *item, char *page) \
868 struct se_portal_group *se_tpg = attrib_to_tpg(item); \
869 struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, \
870 struct tcm_qla2xxx_tpg, se_tpg); \
872 return sprintf(page, "%u\n", tpg->tpg_attrib.name); \
875 static ssize_t tcm_qla2xxx_tpg_attrib_##name##_store( \
876 struct config_item *item, const char *page, size_t count) \
878 struct se_portal_group *se_tpg = attrib_to_tpg(item); \
879 struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, \
880 struct tcm_qla2xxx_tpg, se_tpg); \
881 struct tcm_qla2xxx_tpg_attrib *a = &tpg->tpg_attrib; \
885 ret = kstrtoul(page, 0, &val); \
887 pr_err("kstrtoul() failed with" \
888 " ret: %d\n", ret); \
892 if ((val != 0) && (val != 1)) { \
893 pr_err("Illegal boolean value %lu\n", val); \
901 CONFIGFS_ATTR(tcm_qla2xxx_tpg_attrib_, name)
903 DEF_QLA_TPG_ATTRIB(generate_node_acls);
904 DEF_QLA_TPG_ATTRIB(cache_dynamic_acls);
905 DEF_QLA_TPG_ATTRIB(demo_mode_write_protect);
906 DEF_QLA_TPG_ATTRIB(prod_mode_write_protect);
907 DEF_QLA_TPG_ATTRIB(demo_mode_login_only);
908 #ifdef CONFIG_TCM_QLA2XXX_DEBUG
909 DEF_QLA_TPG_ATTRIB(jam_host);
912 static struct configfs_attribute *tcm_qla2xxx_tpg_attrib_attrs[] = {
913 &tcm_qla2xxx_tpg_attrib_attr_generate_node_acls,
914 &tcm_qla2xxx_tpg_attrib_attr_cache_dynamic_acls,
915 &tcm_qla2xxx_tpg_attrib_attr_demo_mode_write_protect,
916 &tcm_qla2xxx_tpg_attrib_attr_prod_mode_write_protect,
917 &tcm_qla2xxx_tpg_attrib_attr_demo_mode_login_only,
918 #ifdef CONFIG_TCM_QLA2XXX_DEBUG
919 &tcm_qla2xxx_tpg_attrib_attr_jam_host,
924 /* End items for tcm_qla2xxx_tpg_attrib_cit */
926 static ssize_t tcm_qla2xxx_tpg_enable_show(struct config_item *item,
929 struct se_portal_group *se_tpg = to_tpg(item);
930 struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
931 struct tcm_qla2xxx_tpg, se_tpg);
933 return snprintf(page, PAGE_SIZE, "%d\n",
934 atomic_read(&tpg->lport_tpg_enabled));
937 static void tcm_qla2xxx_depend_tpg(struct work_struct *work)
939 struct tcm_qla2xxx_tpg *base_tpg = container_of(work,
940 struct tcm_qla2xxx_tpg, tpg_base_work);
941 struct se_portal_group *se_tpg = &base_tpg->se_tpg;
942 struct scsi_qla_host *base_vha = base_tpg->lport->qla_vha;
944 if (!target_depend_item(&se_tpg->tpg_group.cg_item)) {
945 atomic_set(&base_tpg->lport_tpg_enabled, 1);
946 qlt_enable_vha(base_vha);
948 complete(&base_tpg->tpg_base_comp);
951 static void tcm_qla2xxx_undepend_tpg(struct work_struct *work)
953 struct tcm_qla2xxx_tpg *base_tpg = container_of(work,
954 struct tcm_qla2xxx_tpg, tpg_base_work);
955 struct se_portal_group *se_tpg = &base_tpg->se_tpg;
956 struct scsi_qla_host *base_vha = base_tpg->lport->qla_vha;
958 if (!qlt_stop_phase1(base_vha->vha_tgt.qla_tgt)) {
959 atomic_set(&base_tpg->lport_tpg_enabled, 0);
960 target_undepend_item(&se_tpg->tpg_group.cg_item);
962 complete(&base_tpg->tpg_base_comp);
965 static ssize_t tcm_qla2xxx_tpg_enable_store(struct config_item *item,
966 const char *page, size_t count)
968 struct se_portal_group *se_tpg = to_tpg(item);
969 struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
970 struct tcm_qla2xxx_tpg, se_tpg);
974 rc = kstrtoul(page, 0, &op);
976 pr_err("kstrtoul() returned %d\n", rc);
979 if ((op != 1) && (op != 0)) {
980 pr_err("Illegal value for tpg_enable: %lu\n", op);
984 if (atomic_read(&tpg->lport_tpg_enabled))
987 INIT_WORK(&tpg->tpg_base_work, tcm_qla2xxx_depend_tpg);
989 if (!atomic_read(&tpg->lport_tpg_enabled))
992 INIT_WORK(&tpg->tpg_base_work, tcm_qla2xxx_undepend_tpg);
994 init_completion(&tpg->tpg_base_comp);
995 schedule_work(&tpg->tpg_base_work);
996 wait_for_completion(&tpg->tpg_base_comp);
999 if (!atomic_read(&tpg->lport_tpg_enabled))
1002 if (atomic_read(&tpg->lport_tpg_enabled))
1008 static ssize_t tcm_qla2xxx_tpg_dynamic_sessions_show(struct config_item *item,
1011 return target_show_dynamic_sessions(to_tpg(item), page);
1014 static ssize_t tcm_qla2xxx_tpg_fabric_prot_type_store(struct config_item *item,
1015 const char *page, size_t count)
1017 struct se_portal_group *se_tpg = to_tpg(item);
1018 struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
1019 struct tcm_qla2xxx_tpg, se_tpg);
1021 int ret = kstrtoul(page, 0, &val);
1024 pr_err("kstrtoul() returned %d for fabric_prot_type\n", ret);
1027 if (val != 0 && val != 1 && val != 3) {
1028 pr_err("Invalid qla2xxx fabric_prot_type: %lu\n", val);
1031 tpg->tpg_attrib.fabric_prot_type = val;
1036 static ssize_t tcm_qla2xxx_tpg_fabric_prot_type_show(struct config_item *item,
1039 struct se_portal_group *se_tpg = to_tpg(item);
1040 struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
1041 struct tcm_qla2xxx_tpg, se_tpg);
1043 return sprintf(page, "%d\n", tpg->tpg_attrib.fabric_prot_type);
1046 CONFIGFS_ATTR(tcm_qla2xxx_tpg_, enable);
1047 CONFIGFS_ATTR_RO(tcm_qla2xxx_tpg_, dynamic_sessions);
1048 CONFIGFS_ATTR(tcm_qla2xxx_tpg_, fabric_prot_type);
1050 static struct configfs_attribute *tcm_qla2xxx_tpg_attrs[] = {
1051 &tcm_qla2xxx_tpg_attr_enable,
1052 &tcm_qla2xxx_tpg_attr_dynamic_sessions,
1053 &tcm_qla2xxx_tpg_attr_fabric_prot_type,
1057 static struct se_portal_group *tcm_qla2xxx_make_tpg(
1059 struct config_group *group,
1062 struct tcm_qla2xxx_lport *lport = container_of(wwn,
1063 struct tcm_qla2xxx_lport, lport_wwn);
1064 struct tcm_qla2xxx_tpg *tpg;
1068 if (strstr(name, "tpgt_") != name)
1069 return ERR_PTR(-EINVAL);
1070 if (kstrtoul(name + 5, 10, &tpgt) || tpgt > USHRT_MAX)
1071 return ERR_PTR(-EINVAL);
1074 pr_err("In non NPIV mode, a single TPG=1 is used for HW port mappings\n");
1075 return ERR_PTR(-ENOSYS);
1078 tpg = kzalloc(sizeof(struct tcm_qla2xxx_tpg), GFP_KERNEL);
1080 pr_err("Unable to allocate struct tcm_qla2xxx_tpg\n");
1081 return ERR_PTR(-ENOMEM);
1084 tpg->lport_tpgt = tpgt;
1086 * By default allow READ-ONLY TPG demo-mode access w/ cached dynamic
1089 tpg->tpg_attrib.generate_node_acls = 1;
1090 tpg->tpg_attrib.demo_mode_write_protect = 1;
1091 tpg->tpg_attrib.cache_dynamic_acls = 1;
1092 tpg->tpg_attrib.demo_mode_login_only = 1;
1093 tpg->tpg_attrib.jam_host = 0;
1095 ret = core_tpg_register(wwn, &tpg->se_tpg, SCSI_PROTOCOL_FCP);
1103 return &tpg->se_tpg;
1106 static void tcm_qla2xxx_drop_tpg(struct se_portal_group *se_tpg)
1108 struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
1109 struct tcm_qla2xxx_tpg, se_tpg);
1110 struct tcm_qla2xxx_lport *lport = tpg->lport;
1111 struct scsi_qla_host *vha = lport->qla_vha;
1113 * Call into qla2x_target.c LLD logic to shutdown the active
1114 * FC Nexuses and disable target mode operation for this qla_hw_data
1116 if (vha->vha_tgt.qla_tgt && !vha->vha_tgt.qla_tgt->tgt_stop)
1117 qlt_stop_phase1(vha->vha_tgt.qla_tgt);
1119 core_tpg_deregister(se_tpg);
1121 * Clear local TPG=1 pointer for non NPIV mode.
1123 lport->tpg_1 = NULL;
1127 static ssize_t tcm_qla2xxx_npiv_tpg_enable_show(struct config_item *item,
1130 return tcm_qla2xxx_tpg_enable_show(item, page);
1133 static ssize_t tcm_qla2xxx_npiv_tpg_enable_store(struct config_item *item,
1134 const char *page, size_t count)
1136 struct se_portal_group *se_tpg = to_tpg(item);
1137 struct se_wwn *se_wwn = se_tpg->se_tpg_wwn;
1138 struct tcm_qla2xxx_lport *lport = container_of(se_wwn,
1139 struct tcm_qla2xxx_lport, lport_wwn);
1140 struct scsi_qla_host *vha = lport->qla_vha;
1141 struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
1142 struct tcm_qla2xxx_tpg, se_tpg);
1146 rc = kstrtoul(page, 0, &op);
1148 pr_err("kstrtoul() returned %d\n", rc);
1151 if ((op != 1) && (op != 0)) {
1152 pr_err("Illegal value for tpg_enable: %lu\n", op);
1156 if (atomic_read(&tpg->lport_tpg_enabled))
1159 atomic_set(&tpg->lport_tpg_enabled, 1);
1160 qlt_enable_vha(vha);
1162 if (!atomic_read(&tpg->lport_tpg_enabled))
1165 atomic_set(&tpg->lport_tpg_enabled, 0);
1166 qlt_stop_phase1(vha->vha_tgt.qla_tgt);
1172 CONFIGFS_ATTR(tcm_qla2xxx_npiv_tpg_, enable);
1174 static struct configfs_attribute *tcm_qla2xxx_npiv_tpg_attrs[] = {
1175 &tcm_qla2xxx_npiv_tpg_attr_enable,
1179 static struct se_portal_group *tcm_qla2xxx_npiv_make_tpg(
1181 struct config_group *group,
1184 struct tcm_qla2xxx_lport *lport = container_of(wwn,
1185 struct tcm_qla2xxx_lport, lport_wwn);
1186 struct tcm_qla2xxx_tpg *tpg;
1190 if (strstr(name, "tpgt_") != name)
1191 return ERR_PTR(-EINVAL);
1192 if (kstrtoul(name + 5, 10, &tpgt) || tpgt > USHRT_MAX)
1193 return ERR_PTR(-EINVAL);
1195 tpg = kzalloc(sizeof(struct tcm_qla2xxx_tpg), GFP_KERNEL);
1197 pr_err("Unable to allocate struct tcm_qla2xxx_tpg\n");
1198 return ERR_PTR(-ENOMEM);
1201 tpg->lport_tpgt = tpgt;
1204 * By default allow READ-ONLY TPG demo-mode access w/ cached dynamic
1207 tpg->tpg_attrib.generate_node_acls = 1;
1208 tpg->tpg_attrib.demo_mode_write_protect = 1;
1209 tpg->tpg_attrib.cache_dynamic_acls = 1;
1210 tpg->tpg_attrib.demo_mode_login_only = 1;
1212 ret = core_tpg_register(wwn, &tpg->se_tpg, SCSI_PROTOCOL_FCP);
1218 return &tpg->se_tpg;
1222 * Expected to be called with struct qla_hw_data->tgt.sess_lock held
1224 static struct fc_port *tcm_qla2xxx_find_sess_by_s_id(
1225 scsi_qla_host_t *vha,
1226 const uint8_t *s_id)
1228 struct tcm_qla2xxx_lport *lport;
1229 struct se_node_acl *se_nacl;
1230 struct tcm_qla2xxx_nacl *nacl;
1233 lport = vha->vha_tgt.target_lport_ptr;
1235 pr_err("Unable to locate struct tcm_qla2xxx_lport\n");
1240 key = sid_to_key(s_id);
1241 pr_debug("find_sess_by_s_id: 0x%06x\n", key);
1243 se_nacl = btree_lookup32(&lport->lport_fcport_map, key);
1245 pr_debug("Unable to locate s_id: 0x%06x\n", key);
1248 pr_debug("find_sess_by_s_id: located se_nacl: %p, initiatorname: %s\n",
1249 se_nacl, se_nacl->initiatorname);
1251 nacl = container_of(se_nacl, struct tcm_qla2xxx_nacl, se_node_acl);
1252 if (!nacl->fc_port) {
1253 pr_err("Unable to locate struct fc_port\n");
1257 return nacl->fc_port;
1261 * Expected to be called with struct qla_hw_data->tgt.sess_lock held
1263 static void tcm_qla2xxx_set_sess_by_s_id(
1264 struct tcm_qla2xxx_lport *lport,
1265 struct se_node_acl *new_se_nacl,
1266 struct tcm_qla2xxx_nacl *nacl,
1267 struct se_session *se_sess,
1268 struct fc_port *fc_port,
1275 key = sid_to_key(s_id);
1276 pr_debug("set_sess_by_s_id: %06x\n", key);
1278 slot = btree_lookup32(&lport->lport_fcport_map, key);
1281 pr_debug("Setting up new fc_port entry to new_se_nacl\n");
1282 nacl->nport_id = key;
1283 rc = btree_insert32(&lport->lport_fcport_map, key,
1284 new_se_nacl, GFP_ATOMIC);
1286 printk(KERN_ERR "Unable to insert s_id into fcport_map: %06x\n",
1289 pr_debug("Wiping nonexisting fc_port entry\n");
1292 fc_port->se_sess = se_sess;
1293 nacl->fc_port = fc_port;
1297 if (nacl->fc_port) {
1298 if (new_se_nacl == NULL) {
1299 pr_debug("Clearing existing nacl->fc_port and fc_port entry\n");
1300 btree_remove32(&lport->lport_fcport_map, key);
1301 nacl->fc_port = NULL;
1304 pr_debug("Replacing existing nacl->fc_port and fc_port entry\n");
1305 btree_update32(&lport->lport_fcport_map, key, new_se_nacl);
1306 fc_port->se_sess = se_sess;
1307 nacl->fc_port = fc_port;
1311 if (new_se_nacl == NULL) {
1312 pr_debug("Clearing existing fc_port entry\n");
1313 btree_remove32(&lport->lport_fcport_map, key);
1317 pr_debug("Replacing existing fc_port entry w/o active nacl->fc_port\n");
1318 btree_update32(&lport->lport_fcport_map, key, new_se_nacl);
1319 fc_port->se_sess = se_sess;
1320 nacl->fc_port = fc_port;
1322 pr_debug("Setup nacl->fc_port %p by s_id for se_nacl: %p, initiatorname: %s\n",
1323 nacl->fc_port, new_se_nacl, new_se_nacl->initiatorname);
1327 * Expected to be called with struct qla_hw_data->tgt.sess_lock held
1329 static struct fc_port *tcm_qla2xxx_find_sess_by_loop_id(
1330 scsi_qla_host_t *vha,
1331 const uint16_t loop_id)
1333 struct tcm_qla2xxx_lport *lport;
1334 struct se_node_acl *se_nacl;
1335 struct tcm_qla2xxx_nacl *nacl;
1336 struct tcm_qla2xxx_fc_loopid *fc_loopid;
1338 lport = vha->vha_tgt.target_lport_ptr;
1340 pr_err("Unable to locate struct tcm_qla2xxx_lport\n");
1345 pr_debug("find_sess_by_loop_id: Using loop_id: 0x%04x\n", loop_id);
1347 fc_loopid = lport->lport_loopid_map + loop_id;
1348 se_nacl = fc_loopid->se_nacl;
1350 pr_debug("Unable to locate se_nacl by loop_id: 0x%04x\n",
1355 nacl = container_of(se_nacl, struct tcm_qla2xxx_nacl, se_node_acl);
1357 if (!nacl->fc_port) {
1358 pr_err("Unable to locate struct fc_port\n");
1362 return nacl->fc_port;
1366 * Expected to be called with struct qla_hw_data->tgt.sess_lock held
1368 static void tcm_qla2xxx_set_sess_by_loop_id(
1369 struct tcm_qla2xxx_lport *lport,
1370 struct se_node_acl *new_se_nacl,
1371 struct tcm_qla2xxx_nacl *nacl,
1372 struct se_session *se_sess,
1373 struct fc_port *fc_port,
1376 struct se_node_acl *saved_nacl;
1377 struct tcm_qla2xxx_fc_loopid *fc_loopid;
1379 pr_debug("set_sess_by_loop_id: Using loop_id: 0x%04x\n", loop_id);
1381 fc_loopid = &((struct tcm_qla2xxx_fc_loopid *)
1382 lport->lport_loopid_map)[loop_id];
1384 saved_nacl = fc_loopid->se_nacl;
1386 pr_debug("Setting up new fc_loopid->se_nacl to new_se_nacl\n");
1387 fc_loopid->se_nacl = new_se_nacl;
1388 if (fc_port->se_sess != se_sess)
1389 fc_port->se_sess = se_sess;
1390 if (nacl->fc_port != fc_port)
1391 nacl->fc_port = fc_port;
1395 if (nacl->fc_port) {
1396 if (new_se_nacl == NULL) {
1397 pr_debug("Clearing nacl->fc_port and fc_loopid->se_nacl\n");
1398 fc_loopid->se_nacl = NULL;
1399 nacl->fc_port = NULL;
1403 pr_debug("Replacing existing nacl->fc_port and fc_loopid->se_nacl\n");
1404 fc_loopid->se_nacl = new_se_nacl;
1405 if (fc_port->se_sess != se_sess)
1406 fc_port->se_sess = se_sess;
1407 if (nacl->fc_port != fc_port)
1408 nacl->fc_port = fc_port;
1412 if (new_se_nacl == NULL) {
1413 pr_debug("Clearing fc_loopid->se_nacl\n");
1414 fc_loopid->se_nacl = NULL;
1418 pr_debug("Replacing existing fc_loopid->se_nacl w/o active nacl->fc_port\n");
1419 fc_loopid->se_nacl = new_se_nacl;
1420 if (fc_port->se_sess != se_sess)
1421 fc_port->se_sess = se_sess;
1422 if (nacl->fc_port != fc_port)
1423 nacl->fc_port = fc_port;
1425 pr_debug("Setup nacl->fc_port %p by loop_id for se_nacl: %p, initiatorname: %s\n",
1426 nacl->fc_port, new_se_nacl, new_se_nacl->initiatorname);
1430 * Should always be called with qla_hw_data->tgt.sess_lock held.
1432 static void tcm_qla2xxx_clear_sess_lookup(struct tcm_qla2xxx_lport *lport,
1433 struct tcm_qla2xxx_nacl *nacl, struct fc_port *sess)
1435 struct se_session *se_sess = sess->se_sess;
1436 unsigned char be_sid[3];
1438 be_sid[0] = sess->d_id.b.domain;
1439 be_sid[1] = sess->d_id.b.area;
1440 be_sid[2] = sess->d_id.b.al_pa;
1442 tcm_qla2xxx_set_sess_by_s_id(lport, NULL, nacl, se_sess,
1444 tcm_qla2xxx_set_sess_by_loop_id(lport, NULL, nacl, se_sess,
1445 sess, sess->loop_id);
1448 static void tcm_qla2xxx_free_session(struct fc_port *sess)
1450 struct qla_tgt *tgt = sess->tgt;
1451 struct qla_hw_data *ha = tgt->ha;
1452 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
1453 struct se_session *se_sess;
1454 struct tcm_qla2xxx_lport *lport;
1456 BUG_ON(in_interrupt());
1458 se_sess = sess->se_sess;
1460 pr_err("struct fc_port->se_sess is NULL\n");
1465 lport = vha->vha_tgt.target_lport_ptr;
1467 pr_err("Unable to locate struct tcm_qla2xxx_lport\n");
1471 target_wait_for_sess_cmds(se_sess);
1473 transport_deregister_session_configfs(sess->se_sess);
1474 transport_deregister_session(sess->se_sess);
1477 static int tcm_qla2xxx_session_cb(struct se_portal_group *se_tpg,
1478 struct se_session *se_sess, void *p)
1480 struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
1481 struct tcm_qla2xxx_tpg, se_tpg);
1482 struct tcm_qla2xxx_lport *lport = tpg->lport;
1483 struct qla_hw_data *ha = lport->qla_vha->hw;
1484 struct se_node_acl *se_nacl = se_sess->se_node_acl;
1485 struct tcm_qla2xxx_nacl *nacl = container_of(se_nacl,
1486 struct tcm_qla2xxx_nacl, se_node_acl);
1487 struct fc_port *qlat_sess = p;
1488 uint16_t loop_id = qlat_sess->loop_id;
1489 unsigned long flags;
1490 unsigned char be_sid[3];
1492 be_sid[0] = qlat_sess->d_id.b.domain;
1493 be_sid[1] = qlat_sess->d_id.b.area;
1494 be_sid[2] = qlat_sess->d_id.b.al_pa;
1497 * And now setup se_nacl and session pointers into HW lport internal
1498 * mappings for fabric S_ID and LOOP_ID.
1500 spin_lock_irqsave(&ha->tgt.sess_lock, flags);
1501 tcm_qla2xxx_set_sess_by_s_id(lport, se_nacl, nacl,
1502 se_sess, qlat_sess, be_sid);
1503 tcm_qla2xxx_set_sess_by_loop_id(lport, se_nacl, nacl,
1504 se_sess, qlat_sess, loop_id);
1505 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
1511 * Called via qlt_create_sess():ha->qla2x_tmpl->check_initiator_node_acl()
1512 * to locate struct se_node_acl
1514 static int tcm_qla2xxx_check_initiator_node_acl(
1515 scsi_qla_host_t *vha,
1516 unsigned char *fc_wwpn,
1517 struct fc_port *qlat_sess)
1519 struct qla_hw_data *ha = vha->hw;
1520 struct tcm_qla2xxx_lport *lport;
1521 struct tcm_qla2xxx_tpg *tpg;
1522 struct se_session *se_sess;
1523 unsigned char port_name[36];
1524 int num_tags = (ha->cur_fw_xcb_count) ? ha->cur_fw_xcb_count :
1525 TCM_QLA2XXX_DEFAULT_TAGS;
1527 lport = vha->vha_tgt.target_lport_ptr;
1529 pr_err("Unable to locate struct tcm_qla2xxx_lport\n");
1534 * Locate the TPG=1 reference..
1538 pr_err("Unable to lcoate struct tcm_qla2xxx_lport->tpg_1\n");
1542 * Format the FCP Initiator port_name into colon seperated values to
1543 * match the format by tcm_qla2xxx explict ConfigFS NodeACLs.
1545 memset(&port_name, 0, 36);
1546 snprintf(port_name, sizeof(port_name), "%8phC", fc_wwpn);
1548 * Locate our struct se_node_acl either from an explict NodeACL created
1549 * via ConfigFS, or via running in TPG demo mode.
1551 se_sess = target_alloc_session(&tpg->se_tpg, num_tags,
1552 sizeof(struct qla_tgt_cmd),
1553 TARGET_PROT_ALL, port_name,
1554 qlat_sess, tcm_qla2xxx_session_cb);
1555 if (IS_ERR(se_sess))
1556 return PTR_ERR(se_sess);
1561 static void tcm_qla2xxx_update_sess(struct fc_port *sess, port_id_t s_id,
1562 uint16_t loop_id, bool conf_compl_supported)
1564 struct qla_tgt *tgt = sess->tgt;
1565 struct qla_hw_data *ha = tgt->ha;
1566 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
1567 struct tcm_qla2xxx_lport *lport = vha->vha_tgt.target_lport_ptr;
1568 struct se_node_acl *se_nacl = sess->se_sess->se_node_acl;
1569 struct tcm_qla2xxx_nacl *nacl = container_of(se_nacl,
1570 struct tcm_qla2xxx_nacl, se_node_acl);
1574 if (sess->loop_id != loop_id || sess->d_id.b24 != s_id.b24)
1575 pr_info("Updating session %p from port %8phC loop_id %d -> %d s_id %x:%x:%x -> %x:%x:%x\n",
1576 sess, sess->port_name,
1577 sess->loop_id, loop_id, sess->d_id.b.domain,
1578 sess->d_id.b.area, sess->d_id.b.al_pa, s_id.b.domain,
1579 s_id.b.area, s_id.b.al_pa);
1581 if (sess->loop_id != loop_id) {
1583 * Because we can shuffle loop IDs around and we
1584 * update different sessions non-atomically, we might
1585 * have overwritten this session's old loop ID
1586 * already, and we might end up overwriting some other
1587 * session that will be updated later. So we have to
1588 * be extra careful and we can't warn about those things...
1590 if (lport->lport_loopid_map[sess->loop_id].se_nacl == se_nacl)
1591 lport->lport_loopid_map[sess->loop_id].se_nacl = NULL;
1593 lport->lport_loopid_map[loop_id].se_nacl = se_nacl;
1595 sess->loop_id = loop_id;
1598 if (sess->d_id.b24 != s_id.b24) {
1599 key = (((u32) sess->d_id.b.domain << 16) |
1600 ((u32) sess->d_id.b.area << 8) |
1601 ((u32) sess->d_id.b.al_pa));
1603 if (btree_lookup32(&lport->lport_fcport_map, key))
1604 WARN(btree_remove32(&lport->lport_fcport_map, key) !=
1605 se_nacl, "Found wrong se_nacl when updating s_id %x:%x:%x\n",
1606 sess->d_id.b.domain, sess->d_id.b.area,
1607 sess->d_id.b.al_pa);
1609 WARN(1, "No lport_fcport_map entry for s_id %x:%x:%x\n",
1610 sess->d_id.b.domain, sess->d_id.b.area,
1611 sess->d_id.b.al_pa);
1613 key = (((u32) s_id.b.domain << 16) |
1614 ((u32) s_id.b.area << 8) |
1615 ((u32) s_id.b.al_pa));
1617 if (btree_lookup32(&lport->lport_fcport_map, key)) {
1618 WARN(1, "Already have lport_fcport_map entry for s_id %x:%x:%x\n",
1619 s_id.b.domain, s_id.b.area, s_id.b.al_pa);
1620 btree_update32(&lport->lport_fcport_map, key, se_nacl);
1622 btree_insert32(&lport->lport_fcport_map, key, se_nacl,
1627 nacl->nport_id = key;
1630 sess->conf_compl_supported = conf_compl_supported;
1632 /* Reset logout parameters to default */
1633 sess->logout_on_delete = 1;
1634 sess->keep_nport_handle = 0;
1638 * Calls into tcm_qla2xxx used by qla2xxx LLD I/O path.
1640 static struct qla_tgt_func_tmpl tcm_qla2xxx_template = {
1641 .handle_cmd = tcm_qla2xxx_handle_cmd,
1642 .handle_data = tcm_qla2xxx_handle_data,
1643 .handle_tmr = tcm_qla2xxx_handle_tmr,
1644 .free_cmd = tcm_qla2xxx_free_cmd,
1645 .free_mcmd = tcm_qla2xxx_free_mcmd,
1646 .free_session = tcm_qla2xxx_free_session,
1647 .update_sess = tcm_qla2xxx_update_sess,
1648 .check_initiator_node_acl = tcm_qla2xxx_check_initiator_node_acl,
1649 .find_sess_by_s_id = tcm_qla2xxx_find_sess_by_s_id,
1650 .find_sess_by_loop_id = tcm_qla2xxx_find_sess_by_loop_id,
1651 .clear_nacl_from_fcport_map = tcm_qla2xxx_clear_nacl_from_fcport_map,
1652 .put_sess = tcm_qla2xxx_put_sess,
1653 .shutdown_sess = tcm_qla2xxx_shutdown_sess,
1654 .get_dif_tags = tcm_qla2xxx_dif_tags,
1655 .chk_dif_tags = tcm_qla2xxx_chk_dif_tags,
1658 static int tcm_qla2xxx_init_lport(struct tcm_qla2xxx_lport *lport)
1662 rc = btree_init32(&lport->lport_fcport_map);
1664 pr_err("Unable to initialize lport->lport_fcport_map btree\n");
1668 lport->lport_loopid_map = vmalloc(sizeof(struct tcm_qla2xxx_fc_loopid) *
1670 if (!lport->lport_loopid_map) {
1671 pr_err("Unable to allocate lport->lport_loopid_map of %zu bytes\n",
1672 sizeof(struct tcm_qla2xxx_fc_loopid) * 65536);
1673 btree_destroy32(&lport->lport_fcport_map);
1676 memset(lport->lport_loopid_map, 0, sizeof(struct tcm_qla2xxx_fc_loopid)
1678 pr_debug("qla2xxx: Allocated lport_loopid_map of %zu bytes\n",
1679 sizeof(struct tcm_qla2xxx_fc_loopid) * 65536);
1683 static int tcm_qla2xxx_lport_register_cb(struct scsi_qla_host *vha,
1684 void *target_lport_ptr,
1685 u64 npiv_wwpn, u64 npiv_wwnn)
1687 struct qla_hw_data *ha = vha->hw;
1688 struct tcm_qla2xxx_lport *lport =
1689 (struct tcm_qla2xxx_lport *)target_lport_ptr;
1691 * Setup tgt_ops, local pointer to vha and target_lport_ptr
1693 ha->tgt.tgt_ops = &tcm_qla2xxx_template;
1694 vha->vha_tgt.target_lport_ptr = target_lport_ptr;
1695 lport->qla_vha = vha;
1700 static struct se_wwn *tcm_qla2xxx_make_lport(
1701 struct target_fabric_configfs *tf,
1702 struct config_group *group,
1705 struct tcm_qla2xxx_lport *lport;
1709 if (tcm_qla2xxx_parse_wwn(name, &wwpn, 1) < 0)
1710 return ERR_PTR(-EINVAL);
1712 lport = kzalloc(sizeof(struct tcm_qla2xxx_lport), GFP_KERNEL);
1714 pr_err("Unable to allocate struct tcm_qla2xxx_lport\n");
1715 return ERR_PTR(-ENOMEM);
1717 lport->lport_wwpn = wwpn;
1718 tcm_qla2xxx_format_wwn(&lport->lport_name[0], TCM_QLA2XXX_NAMELEN,
1720 sprintf(lport->lport_naa_name, "naa.%016llx", (unsigned long long) wwpn);
1722 ret = tcm_qla2xxx_init_lport(lport);
1726 ret = qlt_lport_register(lport, wwpn, 0, 0,
1727 tcm_qla2xxx_lport_register_cb);
1731 return &lport->lport_wwn;
1733 vfree(lport->lport_loopid_map);
1734 btree_destroy32(&lport->lport_fcport_map);
1737 return ERR_PTR(ret);
1740 static void tcm_qla2xxx_drop_lport(struct se_wwn *wwn)
1742 struct tcm_qla2xxx_lport *lport = container_of(wwn,
1743 struct tcm_qla2xxx_lport, lport_wwn);
1744 struct scsi_qla_host *vha = lport->qla_vha;
1745 struct se_node_acl *node;
1749 * Call into qla2x_target.c LLD logic to complete the
1750 * shutdown of struct qla_tgt after the call to
1751 * qlt_stop_phase1() from tcm_qla2xxx_drop_tpg() above..
1753 if (vha->vha_tgt.qla_tgt && !vha->vha_tgt.qla_tgt->tgt_stopped)
1754 qlt_stop_phase2(vha->vha_tgt.qla_tgt);
1756 qlt_lport_deregister(vha);
1758 vfree(lport->lport_loopid_map);
1759 btree_for_each_safe32(&lport->lport_fcport_map, key, node)
1760 btree_remove32(&lport->lport_fcport_map, key);
1761 btree_destroy32(&lport->lport_fcport_map);
1765 static int tcm_qla2xxx_lport_register_npiv_cb(struct scsi_qla_host *base_vha,
1766 void *target_lport_ptr,
1767 u64 npiv_wwpn, u64 npiv_wwnn)
1769 struct fc_vport *vport;
1770 struct Scsi_Host *sh = base_vha->host;
1771 struct scsi_qla_host *npiv_vha;
1772 struct tcm_qla2xxx_lport *lport =
1773 (struct tcm_qla2xxx_lport *)target_lport_ptr;
1774 struct tcm_qla2xxx_lport *base_lport =
1775 (struct tcm_qla2xxx_lport *)base_vha->vha_tgt.target_lport_ptr;
1776 struct fc_vport_identifiers vport_id;
1778 if (qla_ini_mode_enabled(base_vha)) {
1779 pr_err("qla2xxx base_vha not enabled for target mode\n");
1783 if (!base_lport || !base_lport->tpg_1 ||
1784 !atomic_read(&base_lport->tpg_1->lport_tpg_enabled)) {
1785 pr_err("qla2xxx base_lport or tpg_1 not available\n");
1789 memset(&vport_id, 0, sizeof(vport_id));
1790 vport_id.port_name = npiv_wwpn;
1791 vport_id.node_name = npiv_wwnn;
1792 vport_id.roles = FC_PORT_ROLE_FCP_INITIATOR;
1793 vport_id.vport_type = FC_PORTTYPE_NPIV;
1794 vport_id.disable = false;
1796 vport = fc_vport_create(sh, 0, &vport_id);
1798 pr_err("fc_vport_create failed for qla2xxx_npiv\n");
1802 * Setup local pointer to NPIV vhba + target_lport_ptr
1804 npiv_vha = (struct scsi_qla_host *)vport->dd_data;
1805 npiv_vha->vha_tgt.target_lport_ptr = target_lport_ptr;
1806 lport->qla_vha = npiv_vha;
1807 scsi_host_get(npiv_vha->host);
1812 static struct se_wwn *tcm_qla2xxx_npiv_make_lport(
1813 struct target_fabric_configfs *tf,
1814 struct config_group *group,
1817 struct tcm_qla2xxx_lport *lport;
1818 u64 phys_wwpn, npiv_wwpn, npiv_wwnn;
1822 snprintf(tmp, 128, "%s", name);
1824 p = strchr(tmp, '@');
1826 pr_err("Unable to locate NPIV '@' separator\n");
1827 return ERR_PTR(-EINVAL);
1831 if (tcm_qla2xxx_parse_wwn(tmp, &phys_wwpn, 1) < 0)
1832 return ERR_PTR(-EINVAL);
1834 if (tcm_qla2xxx_npiv_parse_wwn(p, strlen(p)+1,
1835 &npiv_wwpn, &npiv_wwnn) < 0)
1836 return ERR_PTR(-EINVAL);
1838 lport = kzalloc(sizeof(struct tcm_qla2xxx_lport), GFP_KERNEL);
1840 pr_err("Unable to allocate struct tcm_qla2xxx_lport for NPIV\n");
1841 return ERR_PTR(-ENOMEM);
1843 lport->lport_npiv_wwpn = npiv_wwpn;
1844 lport->lport_npiv_wwnn = npiv_wwnn;
1845 sprintf(lport->lport_naa_name, "naa.%016llx", (unsigned long long) npiv_wwpn);
1847 ret = tcm_qla2xxx_init_lport(lport);
1851 ret = qlt_lport_register(lport, phys_wwpn, npiv_wwpn, npiv_wwnn,
1852 tcm_qla2xxx_lport_register_npiv_cb);
1856 return &lport->lport_wwn;
1858 vfree(lport->lport_loopid_map);
1859 btree_destroy32(&lport->lport_fcport_map);
1862 return ERR_PTR(ret);
1865 static void tcm_qla2xxx_npiv_drop_lport(struct se_wwn *wwn)
1867 struct tcm_qla2xxx_lport *lport = container_of(wwn,
1868 struct tcm_qla2xxx_lport, lport_wwn);
1869 struct scsi_qla_host *npiv_vha = lport->qla_vha;
1870 struct qla_hw_data *ha = npiv_vha->hw;
1871 scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
1873 scsi_host_put(npiv_vha->host);
1875 * Notify libfc that we want to release the vha->fc_vport
1877 fc_vport_terminate(npiv_vha->fc_vport);
1878 scsi_host_put(base_vha->host);
1883 static ssize_t tcm_qla2xxx_wwn_version_show(struct config_item *item,
1886 return sprintf(page,
1887 "TCM QLOGIC QLA2XXX NPIV capable fabric module %s on %s/%s on %s\n",
1888 QLA2XXX_VERSION, utsname()->sysname,
1889 utsname()->machine, utsname()->release);
1892 CONFIGFS_ATTR_RO(tcm_qla2xxx_wwn_, version);
1894 static struct configfs_attribute *tcm_qla2xxx_wwn_attrs[] = {
1895 &tcm_qla2xxx_wwn_attr_version,
1899 static const struct target_core_fabric_ops tcm_qla2xxx_ops = {
1900 .module = THIS_MODULE,
1902 .node_acl_size = sizeof(struct tcm_qla2xxx_nacl),
1904 * XXX: Limit assumes single page per scatter-gather-list entry.
1905 * Current maximum is ~4.9 MB per se_cmd->t_data_sg with PAGE_SIZE=4096
1907 .max_data_sg_nents = 1200,
1908 .get_fabric_name = tcm_qla2xxx_get_fabric_name,
1909 .tpg_get_wwn = tcm_qla2xxx_get_fabric_wwn,
1910 .tpg_get_tag = tcm_qla2xxx_get_tag,
1911 .tpg_check_demo_mode = tcm_qla2xxx_check_demo_mode,
1912 .tpg_check_demo_mode_cache = tcm_qla2xxx_check_demo_mode_cache,
1913 .tpg_check_demo_mode_write_protect =
1914 tcm_qla2xxx_check_demo_write_protect,
1915 .tpg_check_prod_mode_write_protect =
1916 tcm_qla2xxx_check_prod_write_protect,
1917 .tpg_check_prot_fabric_only = tcm_qla2xxx_check_prot_fabric_only,
1918 .tpg_check_demo_mode_login_only = tcm_qla2xxx_check_demo_mode_login_only,
1919 .tpg_get_inst_index = tcm_qla2xxx_tpg_get_inst_index,
1920 .check_stop_free = tcm_qla2xxx_check_stop_free,
1921 .release_cmd = tcm_qla2xxx_release_cmd,
1922 .close_session = tcm_qla2xxx_close_session,
1923 .sess_get_index = tcm_qla2xxx_sess_get_index,
1924 .sess_get_initiator_sid = NULL,
1925 .write_pending = tcm_qla2xxx_write_pending,
1926 .write_pending_status = tcm_qla2xxx_write_pending_status,
1927 .set_default_node_attributes = tcm_qla2xxx_set_default_node_attrs,
1928 .get_cmd_state = tcm_qla2xxx_get_cmd_state,
1929 .queue_data_in = tcm_qla2xxx_queue_data_in,
1930 .queue_status = tcm_qla2xxx_queue_status,
1931 .queue_tm_rsp = tcm_qla2xxx_queue_tm_rsp,
1932 .aborted_task = tcm_qla2xxx_aborted_task,
1934 * Setup function pointers for generic logic in
1935 * target_core_fabric_configfs.c
1937 .fabric_make_wwn = tcm_qla2xxx_make_lport,
1938 .fabric_drop_wwn = tcm_qla2xxx_drop_lport,
1939 .fabric_make_tpg = tcm_qla2xxx_make_tpg,
1940 .fabric_drop_tpg = tcm_qla2xxx_drop_tpg,
1941 .fabric_init_nodeacl = tcm_qla2xxx_init_nodeacl,
1943 .tfc_wwn_attrs = tcm_qla2xxx_wwn_attrs,
1944 .tfc_tpg_base_attrs = tcm_qla2xxx_tpg_attrs,
1945 .tfc_tpg_attrib_attrs = tcm_qla2xxx_tpg_attrib_attrs,
1948 static const struct target_core_fabric_ops tcm_qla2xxx_npiv_ops = {
1949 .module = THIS_MODULE,
1950 .name = "qla2xxx_npiv",
1951 .node_acl_size = sizeof(struct tcm_qla2xxx_nacl),
1952 .get_fabric_name = tcm_qla2xxx_npiv_get_fabric_name,
1953 .tpg_get_wwn = tcm_qla2xxx_get_fabric_wwn,
1954 .tpg_get_tag = tcm_qla2xxx_get_tag,
1955 .tpg_check_demo_mode = tcm_qla2xxx_check_demo_mode,
1956 .tpg_check_demo_mode_cache = tcm_qla2xxx_check_demo_mode_cache,
1957 .tpg_check_demo_mode_write_protect = tcm_qla2xxx_check_demo_mode,
1958 .tpg_check_prod_mode_write_protect =
1959 tcm_qla2xxx_check_prod_write_protect,
1960 .tpg_check_demo_mode_login_only = tcm_qla2xxx_check_demo_mode_login_only,
1961 .tpg_get_inst_index = tcm_qla2xxx_tpg_get_inst_index,
1962 .check_stop_free = tcm_qla2xxx_check_stop_free,
1963 .release_cmd = tcm_qla2xxx_release_cmd,
1964 .close_session = tcm_qla2xxx_close_session,
1965 .sess_get_index = tcm_qla2xxx_sess_get_index,
1966 .sess_get_initiator_sid = NULL,
1967 .write_pending = tcm_qla2xxx_write_pending,
1968 .write_pending_status = tcm_qla2xxx_write_pending_status,
1969 .set_default_node_attributes = tcm_qla2xxx_set_default_node_attrs,
1970 .get_cmd_state = tcm_qla2xxx_get_cmd_state,
1971 .queue_data_in = tcm_qla2xxx_queue_data_in,
1972 .queue_status = tcm_qla2xxx_queue_status,
1973 .queue_tm_rsp = tcm_qla2xxx_queue_tm_rsp,
1974 .aborted_task = tcm_qla2xxx_aborted_task,
1976 * Setup function pointers for generic logic in
1977 * target_core_fabric_configfs.c
1979 .fabric_make_wwn = tcm_qla2xxx_npiv_make_lport,
1980 .fabric_drop_wwn = tcm_qla2xxx_npiv_drop_lport,
1981 .fabric_make_tpg = tcm_qla2xxx_npiv_make_tpg,
1982 .fabric_drop_tpg = tcm_qla2xxx_drop_tpg,
1983 .fabric_init_nodeacl = tcm_qla2xxx_init_nodeacl,
1985 .tfc_wwn_attrs = tcm_qla2xxx_wwn_attrs,
1986 .tfc_tpg_base_attrs = tcm_qla2xxx_npiv_tpg_attrs,
1989 static int tcm_qla2xxx_register_configfs(void)
1993 pr_debug("TCM QLOGIC QLA2XXX fabric module %s on %s/%s on %s\n",
1994 QLA2XXX_VERSION, utsname()->sysname,
1995 utsname()->machine, utsname()->release);
1997 ret = target_register_template(&tcm_qla2xxx_ops);
2001 ret = target_register_template(&tcm_qla2xxx_npiv_ops);
2005 tcm_qla2xxx_free_wq = alloc_workqueue("tcm_qla2xxx_free",
2007 if (!tcm_qla2xxx_free_wq) {
2009 goto out_fabric_npiv;
2012 tcm_qla2xxx_cmd_wq = alloc_workqueue("tcm_qla2xxx_cmd", 0, 0);
2013 if (!tcm_qla2xxx_cmd_wq) {
2021 destroy_workqueue(tcm_qla2xxx_free_wq);
2023 target_unregister_template(&tcm_qla2xxx_npiv_ops);
2025 target_unregister_template(&tcm_qla2xxx_ops);
2029 static void tcm_qla2xxx_deregister_configfs(void)
2031 destroy_workqueue(tcm_qla2xxx_cmd_wq);
2032 destroy_workqueue(tcm_qla2xxx_free_wq);
2034 target_unregister_template(&tcm_qla2xxx_ops);
2035 target_unregister_template(&tcm_qla2xxx_npiv_ops);
2038 static int __init tcm_qla2xxx_init(void)
2042 ret = tcm_qla2xxx_register_configfs();
2049 static void __exit tcm_qla2xxx_exit(void)
2051 tcm_qla2xxx_deregister_configfs();
2054 MODULE_DESCRIPTION("TCM QLA24XX+ series NPIV enabled fabric driver");
2055 MODULE_LICENSE("GPL");
2056 module_init(tcm_qla2xxx_init);
2057 module_exit(tcm_qla2xxx_exit);