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;
606 pr_debug("%ld: ABTS received\n", sess->vha->host_no);
607 transl_tmr_func = TMR_ABORT_TASK;
609 case QLA_TGT_2G_ABORT_TASK:
610 pr_debug("%ld: 2G Abort Task received\n", sess->vha->host_no);
611 transl_tmr_func = TMR_ABORT_TASK;
613 case QLA_TGT_CLEAR_ACA:
614 pr_debug("%ld: CLEAR_ACA received\n", sess->vha->host_no);
615 transl_tmr_func = TMR_CLEAR_ACA;
617 case QLA_TGT_TARGET_RESET:
618 pr_debug("%ld: TARGET_RESET received\n", sess->vha->host_no);
619 transl_tmr_func = TMR_TARGET_WARM_RESET;
621 case QLA_TGT_LUN_RESET:
622 pr_debug("%ld: LUN_RESET received\n", sess->vha->host_no);
623 transl_tmr_func = TMR_LUN_RESET;
625 case QLA_TGT_CLEAR_TS:
626 pr_debug("%ld: CLEAR_TS received\n", sess->vha->host_no);
627 transl_tmr_func = TMR_CLEAR_TASK_SET;
629 case QLA_TGT_ABORT_TS:
630 pr_debug("%ld: ABORT_TS received\n", sess->vha->host_no);
631 transl_tmr_func = TMR_ABORT_TASK_SET;
634 pr_debug("%ld: Unknown task mgmt fn 0x%x\n",
635 sess->vha->host_no, tmr_func);
639 return target_submit_tmr(se_cmd, sess->se_sess, NULL, lun, mcmd,
640 transl_tmr_func, GFP_ATOMIC, tag, TARGET_SCF_ACK_KREF);
643 static int tcm_qla2xxx_queue_data_in(struct se_cmd *se_cmd)
645 struct qla_tgt_cmd *cmd = container_of(se_cmd,
646 struct qla_tgt_cmd, se_cmd);
649 /* Cmd can loop during Q-full. tcm_qla2xxx_aborted_task
650 * can get ahead of this cmd. tcm_qla2xxx_aborted_task
651 * already kick start the free.
653 pr_debug("queue_data_in aborted cmd[%p] refcount %d "
654 "transport_state %x, t_state %x, se_cmd_flags %x\n",
655 cmd, kref_read(&cmd->se_cmd.cmd_kref),
656 cmd->se_cmd.transport_state,
658 cmd->se_cmd.se_cmd_flags);
662 cmd->trc_flags |= TRC_XMIT_DATA;
663 cmd->bufflen = se_cmd->data_length;
664 cmd->dma_data_direction = target_reverse_dma_direction(se_cmd);
666 cmd->sg_cnt = se_cmd->t_data_nents;
667 cmd->sg = se_cmd->t_data_sg;
670 cmd->prot_sg_cnt = se_cmd->t_prot_nents;
671 cmd->prot_sg = se_cmd->t_prot_sg;
672 cmd->blk_sz = se_cmd->se_dev->dev_attrib.block_size;
676 * Now queue completed DATA_IN the qla2xxx LLD and response ring
678 return qlt_xmit_response(cmd, QLA_TGT_XMIT_DATA|QLA_TGT_XMIT_STATUS,
679 se_cmd->scsi_status);
682 static int tcm_qla2xxx_queue_status(struct se_cmd *se_cmd)
684 struct qla_tgt_cmd *cmd = container_of(se_cmd,
685 struct qla_tgt_cmd, se_cmd);
686 int xmit_type = QLA_TGT_XMIT_STATUS;
690 * Cmd can loop during Q-full. tcm_qla2xxx_aborted_task
691 * can get ahead of this cmd. tcm_qla2xxx_aborted_task
692 * already kick start the free.
695 "queue_data_in aborted cmd[%p] refcount %d transport_state %x, t_state %x, se_cmd_flags %x\n",
696 cmd, kref_read(&cmd->se_cmd.cmd_kref),
697 cmd->se_cmd.transport_state, cmd->se_cmd.t_state,
698 cmd->se_cmd.se_cmd_flags);
701 cmd->bufflen = se_cmd->data_length;
705 cmd->dma_data_direction = target_reverse_dma_direction(se_cmd);
706 if (cmd->trc_flags & TRC_XMIT_STATUS) {
707 pr_crit("Multiple calls for status = %p.\n", cmd);
710 cmd->trc_flags |= TRC_XMIT_STATUS;
712 if (se_cmd->data_direction == DMA_FROM_DEVICE) {
714 * For FCP_READ with CHECK_CONDITION status, clear cmd->bufflen
715 * for qla_tgt_xmit_response LLD code
717 if (se_cmd->se_cmd_flags & SCF_OVERFLOW_BIT) {
718 se_cmd->se_cmd_flags &= ~SCF_OVERFLOW_BIT;
719 se_cmd->residual_count = 0;
721 se_cmd->se_cmd_flags |= SCF_UNDERFLOW_BIT;
722 se_cmd->residual_count += se_cmd->data_length;
727 * Now queue status response to qla2xxx LLD code and response ring
729 return qlt_xmit_response(cmd, xmit_type, se_cmd->scsi_status);
732 static void tcm_qla2xxx_queue_tm_rsp(struct se_cmd *se_cmd)
734 struct se_tmr_req *se_tmr = se_cmd->se_tmr_req;
735 struct qla_tgt_mgmt_cmd *mcmd = container_of(se_cmd,
736 struct qla_tgt_mgmt_cmd, se_cmd);
738 pr_debug("queue_tm_rsp: mcmd: %p func: 0x%02x response: 0x%02x\n",
739 mcmd, se_tmr->function, se_tmr->response);
741 * Do translation between TCM TM response codes and
742 * QLA2xxx FC TM response codes.
744 switch (se_tmr->response) {
745 case TMR_FUNCTION_COMPLETE:
746 mcmd->fc_tm_rsp = FC_TM_SUCCESS;
748 case TMR_TASK_DOES_NOT_EXIST:
749 mcmd->fc_tm_rsp = FC_TM_BAD_CMD;
751 case TMR_FUNCTION_REJECTED:
752 mcmd->fc_tm_rsp = FC_TM_REJECT;
754 case TMR_LUN_DOES_NOT_EXIST:
756 mcmd->fc_tm_rsp = FC_TM_FAILED;
760 * Queue the TM response to QLA2xxx LLD to build a
761 * CTIO response packet.
763 qlt_xmit_tm_rsp(mcmd);
766 #define DATA_WORK_NOT_FREE(_cmd) (_cmd->data_work && !_cmd->data_work_free)
767 static void tcm_qla2xxx_aborted_task(struct se_cmd *se_cmd)
769 struct qla_tgt_cmd *cmd = container_of(se_cmd,
770 struct qla_tgt_cmd, se_cmd);
773 if (qlt_abort_cmd(cmd))
776 spin_lock_irqsave(&cmd->cmd_lock, flags);
777 if ((cmd->state == QLA_TGT_STATE_NEW)||
778 ((cmd->state == QLA_TGT_STATE_DATA_IN) &&
779 DATA_WORK_NOT_FREE(cmd))) {
780 cmd->data_work_free = 1;
781 spin_unlock_irqrestore(&cmd->cmd_lock, flags);
783 * cmd has not reached fw, Use this trigger to free it.
785 tcm_qla2xxx_free_cmd(cmd);
788 spin_unlock_irqrestore(&cmd->cmd_lock, flags);
793 static void tcm_qla2xxx_clear_sess_lookup(struct tcm_qla2xxx_lport *,
794 struct tcm_qla2xxx_nacl *, struct fc_port *);
796 * Expected to be called with struct qla_hw_data->tgt.sess_lock held
798 static void tcm_qla2xxx_clear_nacl_from_fcport_map(struct fc_port *sess)
800 struct se_node_acl *se_nacl = sess->se_sess->se_node_acl;
801 struct se_portal_group *se_tpg = se_nacl->se_tpg;
802 struct se_wwn *se_wwn = se_tpg->se_tpg_wwn;
803 struct tcm_qla2xxx_lport *lport = container_of(se_wwn,
804 struct tcm_qla2xxx_lport, lport_wwn);
805 struct tcm_qla2xxx_nacl *nacl = container_of(se_nacl,
806 struct tcm_qla2xxx_nacl, se_node_acl);
809 pr_debug("fc_rport domain: port_id 0x%06x\n", nacl->nport_id);
811 node = btree_remove32(&lport->lport_fcport_map, nacl->nport_id);
812 if (WARN_ON(node && (node != se_nacl))) {
814 * The nacl no longer matches what we think it should be.
815 * Most likely a new dynamic acl has been added while
816 * someone dropped the hardware lock. It clearly is a
817 * bug elsewhere, but this bit can't make things worse.
819 btree_insert32(&lport->lport_fcport_map, nacl->nport_id,
823 pr_debug("Removed from fcport_map: %p for WWNN: 0x%016LX, port_id: 0x%06x\n",
824 se_nacl, nacl->nport_wwnn, nacl->nport_id);
826 * Now clear the se_nacl and session pointers from our HW lport lookup
827 * table mapping for this initiator's fabric S_ID and LOOP_ID entries.
829 * This is done ahead of callbacks into tcm_qla2xxx_free_session() ->
830 * target_wait_for_sess_cmds() before the session waits for outstanding
831 * I/O to complete, to avoid a race between session shutdown execution
832 * and incoming ATIOs or TMRs picking up a stale se_node_act reference.
834 tcm_qla2xxx_clear_sess_lookup(lport, nacl, sess);
837 static void tcm_qla2xxx_shutdown_sess(struct fc_port *sess)
839 assert_spin_locked(&sess->vha->hw->tgt.sess_lock);
840 target_sess_cmd_list_set_waiting(sess->se_sess);
843 static int tcm_qla2xxx_init_nodeacl(struct se_node_acl *se_nacl,
846 struct tcm_qla2xxx_nacl *nacl =
847 container_of(se_nacl, struct tcm_qla2xxx_nacl, se_node_acl);
850 if (tcm_qla2xxx_parse_wwn(name, &wwnn, 1) < 0)
853 nacl->nport_wwnn = wwnn;
854 tcm_qla2xxx_format_wwn(&nacl->nport_name[0], TCM_QLA2XXX_NAMELEN, wwnn);
859 /* Start items for tcm_qla2xxx_tpg_attrib_cit */
861 #define DEF_QLA_TPG_ATTRIB(name) \
863 static ssize_t tcm_qla2xxx_tpg_attrib_##name##_show( \
864 struct config_item *item, char *page) \
866 struct se_portal_group *se_tpg = attrib_to_tpg(item); \
867 struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, \
868 struct tcm_qla2xxx_tpg, se_tpg); \
870 return sprintf(page, "%u\n", tpg->tpg_attrib.name); \
873 static ssize_t tcm_qla2xxx_tpg_attrib_##name##_store( \
874 struct config_item *item, const char *page, size_t count) \
876 struct se_portal_group *se_tpg = attrib_to_tpg(item); \
877 struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, \
878 struct tcm_qla2xxx_tpg, se_tpg); \
879 struct tcm_qla2xxx_tpg_attrib *a = &tpg->tpg_attrib; \
883 ret = kstrtoul(page, 0, &val); \
885 pr_err("kstrtoul() failed with" \
886 " ret: %d\n", ret); \
890 if ((val != 0) && (val != 1)) { \
891 pr_err("Illegal boolean value %lu\n", val); \
899 CONFIGFS_ATTR(tcm_qla2xxx_tpg_attrib_, name)
901 DEF_QLA_TPG_ATTRIB(generate_node_acls);
902 DEF_QLA_TPG_ATTRIB(cache_dynamic_acls);
903 DEF_QLA_TPG_ATTRIB(demo_mode_write_protect);
904 DEF_QLA_TPG_ATTRIB(prod_mode_write_protect);
905 DEF_QLA_TPG_ATTRIB(demo_mode_login_only);
906 #ifdef CONFIG_TCM_QLA2XXX_DEBUG
907 DEF_QLA_TPG_ATTRIB(jam_host);
910 static struct configfs_attribute *tcm_qla2xxx_tpg_attrib_attrs[] = {
911 &tcm_qla2xxx_tpg_attrib_attr_generate_node_acls,
912 &tcm_qla2xxx_tpg_attrib_attr_cache_dynamic_acls,
913 &tcm_qla2xxx_tpg_attrib_attr_demo_mode_write_protect,
914 &tcm_qla2xxx_tpg_attrib_attr_prod_mode_write_protect,
915 &tcm_qla2xxx_tpg_attrib_attr_demo_mode_login_only,
916 #ifdef CONFIG_TCM_QLA2XXX_DEBUG
917 &tcm_qla2xxx_tpg_attrib_attr_jam_host,
922 /* End items for tcm_qla2xxx_tpg_attrib_cit */
924 static ssize_t tcm_qla2xxx_tpg_enable_show(struct config_item *item,
927 struct se_portal_group *se_tpg = to_tpg(item);
928 struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
929 struct tcm_qla2xxx_tpg, se_tpg);
931 return snprintf(page, PAGE_SIZE, "%d\n",
932 atomic_read(&tpg->lport_tpg_enabled));
935 static void tcm_qla2xxx_depend_tpg(struct work_struct *work)
937 struct tcm_qla2xxx_tpg *base_tpg = container_of(work,
938 struct tcm_qla2xxx_tpg, tpg_base_work);
939 struct se_portal_group *se_tpg = &base_tpg->se_tpg;
940 struct scsi_qla_host *base_vha = base_tpg->lport->qla_vha;
942 if (!target_depend_item(&se_tpg->tpg_group.cg_item)) {
943 atomic_set(&base_tpg->lport_tpg_enabled, 1);
944 qlt_enable_vha(base_vha);
946 complete(&base_tpg->tpg_base_comp);
949 static void tcm_qla2xxx_undepend_tpg(struct work_struct *work)
951 struct tcm_qla2xxx_tpg *base_tpg = container_of(work,
952 struct tcm_qla2xxx_tpg, tpg_base_work);
953 struct se_portal_group *se_tpg = &base_tpg->se_tpg;
954 struct scsi_qla_host *base_vha = base_tpg->lport->qla_vha;
956 if (!qlt_stop_phase1(base_vha->vha_tgt.qla_tgt)) {
957 atomic_set(&base_tpg->lport_tpg_enabled, 0);
958 target_undepend_item(&se_tpg->tpg_group.cg_item);
960 complete(&base_tpg->tpg_base_comp);
963 static ssize_t tcm_qla2xxx_tpg_enable_store(struct config_item *item,
964 const char *page, size_t count)
966 struct se_portal_group *se_tpg = to_tpg(item);
967 struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
968 struct tcm_qla2xxx_tpg, se_tpg);
972 rc = kstrtoul(page, 0, &op);
974 pr_err("kstrtoul() returned %d\n", rc);
977 if ((op != 1) && (op != 0)) {
978 pr_err("Illegal value for tpg_enable: %lu\n", op);
982 if (atomic_read(&tpg->lport_tpg_enabled))
985 INIT_WORK(&tpg->tpg_base_work, tcm_qla2xxx_depend_tpg);
987 if (!atomic_read(&tpg->lport_tpg_enabled))
990 INIT_WORK(&tpg->tpg_base_work, tcm_qla2xxx_undepend_tpg);
992 init_completion(&tpg->tpg_base_comp);
993 schedule_work(&tpg->tpg_base_work);
994 wait_for_completion(&tpg->tpg_base_comp);
997 if (!atomic_read(&tpg->lport_tpg_enabled))
1000 if (atomic_read(&tpg->lport_tpg_enabled))
1006 static ssize_t tcm_qla2xxx_tpg_dynamic_sessions_show(struct config_item *item,
1009 return target_show_dynamic_sessions(to_tpg(item), page);
1012 static ssize_t tcm_qla2xxx_tpg_fabric_prot_type_store(struct config_item *item,
1013 const char *page, size_t count)
1015 struct se_portal_group *se_tpg = to_tpg(item);
1016 struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
1017 struct tcm_qla2xxx_tpg, se_tpg);
1019 int ret = kstrtoul(page, 0, &val);
1022 pr_err("kstrtoul() returned %d for fabric_prot_type\n", ret);
1025 if (val != 0 && val != 1 && val != 3) {
1026 pr_err("Invalid qla2xxx fabric_prot_type: %lu\n", val);
1029 tpg->tpg_attrib.fabric_prot_type = val;
1034 static ssize_t tcm_qla2xxx_tpg_fabric_prot_type_show(struct config_item *item,
1037 struct se_portal_group *se_tpg = to_tpg(item);
1038 struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
1039 struct tcm_qla2xxx_tpg, se_tpg);
1041 return sprintf(page, "%d\n", tpg->tpg_attrib.fabric_prot_type);
1044 CONFIGFS_ATTR(tcm_qla2xxx_tpg_, enable);
1045 CONFIGFS_ATTR_RO(tcm_qla2xxx_tpg_, dynamic_sessions);
1046 CONFIGFS_ATTR(tcm_qla2xxx_tpg_, fabric_prot_type);
1048 static struct configfs_attribute *tcm_qla2xxx_tpg_attrs[] = {
1049 &tcm_qla2xxx_tpg_attr_enable,
1050 &tcm_qla2xxx_tpg_attr_dynamic_sessions,
1051 &tcm_qla2xxx_tpg_attr_fabric_prot_type,
1055 static struct se_portal_group *tcm_qla2xxx_make_tpg(
1057 struct config_group *group,
1060 struct tcm_qla2xxx_lport *lport = container_of(wwn,
1061 struct tcm_qla2xxx_lport, lport_wwn);
1062 struct tcm_qla2xxx_tpg *tpg;
1066 if (strstr(name, "tpgt_") != name)
1067 return ERR_PTR(-EINVAL);
1068 if (kstrtoul(name + 5, 10, &tpgt) || tpgt > USHRT_MAX)
1069 return ERR_PTR(-EINVAL);
1072 pr_err("In non NPIV mode, a single TPG=1 is used for HW port mappings\n");
1073 return ERR_PTR(-ENOSYS);
1076 tpg = kzalloc(sizeof(struct tcm_qla2xxx_tpg), GFP_KERNEL);
1078 pr_err("Unable to allocate struct tcm_qla2xxx_tpg\n");
1079 return ERR_PTR(-ENOMEM);
1082 tpg->lport_tpgt = tpgt;
1084 * By default allow READ-ONLY TPG demo-mode access w/ cached dynamic
1087 tpg->tpg_attrib.generate_node_acls = 1;
1088 tpg->tpg_attrib.demo_mode_write_protect = 1;
1089 tpg->tpg_attrib.cache_dynamic_acls = 1;
1090 tpg->tpg_attrib.demo_mode_login_only = 1;
1091 tpg->tpg_attrib.jam_host = 0;
1093 ret = core_tpg_register(wwn, &tpg->se_tpg, SCSI_PROTOCOL_FCP);
1101 return &tpg->se_tpg;
1104 static void tcm_qla2xxx_drop_tpg(struct se_portal_group *se_tpg)
1106 struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
1107 struct tcm_qla2xxx_tpg, se_tpg);
1108 struct tcm_qla2xxx_lport *lport = tpg->lport;
1109 struct scsi_qla_host *vha = lport->qla_vha;
1111 * Call into qla2x_target.c LLD logic to shutdown the active
1112 * FC Nexuses and disable target mode operation for this qla_hw_data
1114 if (vha->vha_tgt.qla_tgt && !vha->vha_tgt.qla_tgt->tgt_stop)
1115 qlt_stop_phase1(vha->vha_tgt.qla_tgt);
1117 core_tpg_deregister(se_tpg);
1119 * Clear local TPG=1 pointer for non NPIV mode.
1121 lport->tpg_1 = NULL;
1125 static ssize_t tcm_qla2xxx_npiv_tpg_enable_show(struct config_item *item,
1128 return tcm_qla2xxx_tpg_enable_show(item, page);
1131 static ssize_t tcm_qla2xxx_npiv_tpg_enable_store(struct config_item *item,
1132 const char *page, size_t count)
1134 struct se_portal_group *se_tpg = to_tpg(item);
1135 struct se_wwn *se_wwn = se_tpg->se_tpg_wwn;
1136 struct tcm_qla2xxx_lport *lport = container_of(se_wwn,
1137 struct tcm_qla2xxx_lport, lport_wwn);
1138 struct scsi_qla_host *vha = lport->qla_vha;
1139 struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
1140 struct tcm_qla2xxx_tpg, se_tpg);
1144 rc = kstrtoul(page, 0, &op);
1146 pr_err("kstrtoul() returned %d\n", rc);
1149 if ((op != 1) && (op != 0)) {
1150 pr_err("Illegal value for tpg_enable: %lu\n", op);
1154 if (atomic_read(&tpg->lport_tpg_enabled))
1157 atomic_set(&tpg->lport_tpg_enabled, 1);
1158 qlt_enable_vha(vha);
1160 if (!atomic_read(&tpg->lport_tpg_enabled))
1163 atomic_set(&tpg->lport_tpg_enabled, 0);
1164 qlt_stop_phase1(vha->vha_tgt.qla_tgt);
1170 CONFIGFS_ATTR(tcm_qla2xxx_npiv_tpg_, enable);
1172 static struct configfs_attribute *tcm_qla2xxx_npiv_tpg_attrs[] = {
1173 &tcm_qla2xxx_npiv_tpg_attr_enable,
1177 static struct se_portal_group *tcm_qla2xxx_npiv_make_tpg(
1179 struct config_group *group,
1182 struct tcm_qla2xxx_lport *lport = container_of(wwn,
1183 struct tcm_qla2xxx_lport, lport_wwn);
1184 struct tcm_qla2xxx_tpg *tpg;
1188 if (strstr(name, "tpgt_") != name)
1189 return ERR_PTR(-EINVAL);
1190 if (kstrtoul(name + 5, 10, &tpgt) || tpgt > USHRT_MAX)
1191 return ERR_PTR(-EINVAL);
1193 tpg = kzalloc(sizeof(struct tcm_qla2xxx_tpg), GFP_KERNEL);
1195 pr_err("Unable to allocate struct tcm_qla2xxx_tpg\n");
1196 return ERR_PTR(-ENOMEM);
1199 tpg->lport_tpgt = tpgt;
1202 * By default allow READ-ONLY TPG demo-mode access w/ cached dynamic
1205 tpg->tpg_attrib.generate_node_acls = 1;
1206 tpg->tpg_attrib.demo_mode_write_protect = 1;
1207 tpg->tpg_attrib.cache_dynamic_acls = 1;
1208 tpg->tpg_attrib.demo_mode_login_only = 1;
1210 ret = core_tpg_register(wwn, &tpg->se_tpg, SCSI_PROTOCOL_FCP);
1216 return &tpg->se_tpg;
1220 * Expected to be called with struct qla_hw_data->tgt.sess_lock held
1222 static struct fc_port *tcm_qla2xxx_find_sess_by_s_id(
1223 scsi_qla_host_t *vha,
1224 const uint8_t *s_id)
1226 struct tcm_qla2xxx_lport *lport;
1227 struct se_node_acl *se_nacl;
1228 struct tcm_qla2xxx_nacl *nacl;
1231 lport = vha->vha_tgt.target_lport_ptr;
1233 pr_err("Unable to locate struct tcm_qla2xxx_lport\n");
1238 key = sid_to_key(s_id);
1239 pr_debug("find_sess_by_s_id: 0x%06x\n", key);
1241 se_nacl = btree_lookup32(&lport->lport_fcport_map, key);
1243 pr_debug("Unable to locate s_id: 0x%06x\n", key);
1246 pr_debug("find_sess_by_s_id: located se_nacl: %p, initiatorname: %s\n",
1247 se_nacl, se_nacl->initiatorname);
1249 nacl = container_of(se_nacl, struct tcm_qla2xxx_nacl, se_node_acl);
1250 if (!nacl->fc_port) {
1251 pr_err("Unable to locate struct fc_port\n");
1255 return nacl->fc_port;
1259 * Expected to be called with struct qla_hw_data->tgt.sess_lock held
1261 static void tcm_qla2xxx_set_sess_by_s_id(
1262 struct tcm_qla2xxx_lport *lport,
1263 struct se_node_acl *new_se_nacl,
1264 struct tcm_qla2xxx_nacl *nacl,
1265 struct se_session *se_sess,
1266 struct fc_port *fc_port,
1273 key = sid_to_key(s_id);
1274 pr_debug("set_sess_by_s_id: %06x\n", key);
1276 slot = btree_lookup32(&lport->lport_fcport_map, key);
1279 pr_debug("Setting up new fc_port entry to new_se_nacl\n");
1280 nacl->nport_id = key;
1281 rc = btree_insert32(&lport->lport_fcport_map, key,
1282 new_se_nacl, GFP_ATOMIC);
1284 printk(KERN_ERR "Unable to insert s_id into fcport_map: %06x\n",
1287 pr_debug("Wiping nonexisting fc_port entry\n");
1290 fc_port->se_sess = se_sess;
1291 nacl->fc_port = fc_port;
1295 if (nacl->fc_port) {
1296 if (new_se_nacl == NULL) {
1297 pr_debug("Clearing existing nacl->fc_port and fc_port entry\n");
1298 btree_remove32(&lport->lport_fcport_map, key);
1299 nacl->fc_port = NULL;
1302 pr_debug("Replacing existing nacl->fc_port and fc_port entry\n");
1303 btree_update32(&lport->lport_fcport_map, key, new_se_nacl);
1304 fc_port->se_sess = se_sess;
1305 nacl->fc_port = fc_port;
1309 if (new_se_nacl == NULL) {
1310 pr_debug("Clearing existing fc_port entry\n");
1311 btree_remove32(&lport->lport_fcport_map, key);
1315 pr_debug("Replacing existing fc_port entry w/o active nacl->fc_port\n");
1316 btree_update32(&lport->lport_fcport_map, key, new_se_nacl);
1317 fc_port->se_sess = se_sess;
1318 nacl->fc_port = fc_port;
1320 pr_debug("Setup nacl->fc_port %p by s_id for se_nacl: %p, initiatorname: %s\n",
1321 nacl->fc_port, new_se_nacl, new_se_nacl->initiatorname);
1325 * Expected to be called with struct qla_hw_data->tgt.sess_lock held
1327 static struct fc_port *tcm_qla2xxx_find_sess_by_loop_id(
1328 scsi_qla_host_t *vha,
1329 const uint16_t loop_id)
1331 struct tcm_qla2xxx_lport *lport;
1332 struct se_node_acl *se_nacl;
1333 struct tcm_qla2xxx_nacl *nacl;
1334 struct tcm_qla2xxx_fc_loopid *fc_loopid;
1336 lport = vha->vha_tgt.target_lport_ptr;
1338 pr_err("Unable to locate struct tcm_qla2xxx_lport\n");
1343 pr_debug("find_sess_by_loop_id: Using loop_id: 0x%04x\n", loop_id);
1345 fc_loopid = lport->lport_loopid_map + loop_id;
1346 se_nacl = fc_loopid->se_nacl;
1348 pr_debug("Unable to locate se_nacl by loop_id: 0x%04x\n",
1353 nacl = container_of(se_nacl, struct tcm_qla2xxx_nacl, se_node_acl);
1355 if (!nacl->fc_port) {
1356 pr_err("Unable to locate struct fc_port\n");
1360 return nacl->fc_port;
1364 * Expected to be called with struct qla_hw_data->tgt.sess_lock held
1366 static void tcm_qla2xxx_set_sess_by_loop_id(
1367 struct tcm_qla2xxx_lport *lport,
1368 struct se_node_acl *new_se_nacl,
1369 struct tcm_qla2xxx_nacl *nacl,
1370 struct se_session *se_sess,
1371 struct fc_port *fc_port,
1374 struct se_node_acl *saved_nacl;
1375 struct tcm_qla2xxx_fc_loopid *fc_loopid;
1377 pr_debug("set_sess_by_loop_id: Using loop_id: 0x%04x\n", loop_id);
1379 fc_loopid = &((struct tcm_qla2xxx_fc_loopid *)
1380 lport->lport_loopid_map)[loop_id];
1382 saved_nacl = fc_loopid->se_nacl;
1384 pr_debug("Setting up new fc_loopid->se_nacl to new_se_nacl\n");
1385 fc_loopid->se_nacl = new_se_nacl;
1386 if (fc_port->se_sess != se_sess)
1387 fc_port->se_sess = se_sess;
1388 if (nacl->fc_port != fc_port)
1389 nacl->fc_port = fc_port;
1393 if (nacl->fc_port) {
1394 if (new_se_nacl == NULL) {
1395 pr_debug("Clearing nacl->fc_port and fc_loopid->se_nacl\n");
1396 fc_loopid->se_nacl = NULL;
1397 nacl->fc_port = NULL;
1401 pr_debug("Replacing existing nacl->fc_port and fc_loopid->se_nacl\n");
1402 fc_loopid->se_nacl = new_se_nacl;
1403 if (fc_port->se_sess != se_sess)
1404 fc_port->se_sess = se_sess;
1405 if (nacl->fc_port != fc_port)
1406 nacl->fc_port = fc_port;
1410 if (new_se_nacl == NULL) {
1411 pr_debug("Clearing fc_loopid->se_nacl\n");
1412 fc_loopid->se_nacl = NULL;
1416 pr_debug("Replacing existing fc_loopid->se_nacl w/o active nacl->fc_port\n");
1417 fc_loopid->se_nacl = new_se_nacl;
1418 if (fc_port->se_sess != se_sess)
1419 fc_port->se_sess = se_sess;
1420 if (nacl->fc_port != fc_port)
1421 nacl->fc_port = fc_port;
1423 pr_debug("Setup nacl->fc_port %p by loop_id for se_nacl: %p, initiatorname: %s\n",
1424 nacl->fc_port, new_se_nacl, new_se_nacl->initiatorname);
1428 * Should always be called with qla_hw_data->tgt.sess_lock held.
1430 static void tcm_qla2xxx_clear_sess_lookup(struct tcm_qla2xxx_lport *lport,
1431 struct tcm_qla2xxx_nacl *nacl, struct fc_port *sess)
1433 struct se_session *se_sess = sess->se_sess;
1434 unsigned char be_sid[3];
1436 be_sid[0] = sess->d_id.b.domain;
1437 be_sid[1] = sess->d_id.b.area;
1438 be_sid[2] = sess->d_id.b.al_pa;
1440 tcm_qla2xxx_set_sess_by_s_id(lport, NULL, nacl, se_sess,
1442 tcm_qla2xxx_set_sess_by_loop_id(lport, NULL, nacl, se_sess,
1443 sess, sess->loop_id);
1446 static void tcm_qla2xxx_free_session(struct fc_port *sess)
1448 struct qla_tgt *tgt = sess->tgt;
1449 struct qla_hw_data *ha = tgt->ha;
1450 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
1451 struct se_session *se_sess;
1452 struct tcm_qla2xxx_lport *lport;
1454 BUG_ON(in_interrupt());
1456 se_sess = sess->se_sess;
1458 pr_err("struct fc_port->se_sess is NULL\n");
1463 lport = vha->vha_tgt.target_lport_ptr;
1465 pr_err("Unable to locate struct tcm_qla2xxx_lport\n");
1469 target_wait_for_sess_cmds(se_sess);
1471 transport_deregister_session_configfs(sess->se_sess);
1472 transport_deregister_session(sess->se_sess);
1475 static int tcm_qla2xxx_session_cb(struct se_portal_group *se_tpg,
1476 struct se_session *se_sess, void *p)
1478 struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg,
1479 struct tcm_qla2xxx_tpg, se_tpg);
1480 struct tcm_qla2xxx_lport *lport = tpg->lport;
1481 struct qla_hw_data *ha = lport->qla_vha->hw;
1482 struct se_node_acl *se_nacl = se_sess->se_node_acl;
1483 struct tcm_qla2xxx_nacl *nacl = container_of(se_nacl,
1484 struct tcm_qla2xxx_nacl, se_node_acl);
1485 struct fc_port *qlat_sess = p;
1486 uint16_t loop_id = qlat_sess->loop_id;
1487 unsigned long flags;
1488 unsigned char be_sid[3];
1490 be_sid[0] = qlat_sess->d_id.b.domain;
1491 be_sid[1] = qlat_sess->d_id.b.area;
1492 be_sid[2] = qlat_sess->d_id.b.al_pa;
1495 * And now setup se_nacl and session pointers into HW lport internal
1496 * mappings for fabric S_ID and LOOP_ID.
1498 spin_lock_irqsave(&ha->tgt.sess_lock, flags);
1499 tcm_qla2xxx_set_sess_by_s_id(lport, se_nacl, nacl,
1500 se_sess, qlat_sess, be_sid);
1501 tcm_qla2xxx_set_sess_by_loop_id(lport, se_nacl, nacl,
1502 se_sess, qlat_sess, loop_id);
1503 spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
1509 * Called via qlt_create_sess():ha->qla2x_tmpl->check_initiator_node_acl()
1510 * to locate struct se_node_acl
1512 static int tcm_qla2xxx_check_initiator_node_acl(
1513 scsi_qla_host_t *vha,
1514 unsigned char *fc_wwpn,
1515 struct fc_port *qlat_sess)
1517 struct qla_hw_data *ha = vha->hw;
1518 struct tcm_qla2xxx_lport *lport;
1519 struct tcm_qla2xxx_tpg *tpg;
1520 struct se_session *se_sess;
1521 unsigned char port_name[36];
1522 int num_tags = (ha->cur_fw_xcb_count) ? ha->cur_fw_xcb_count :
1523 TCM_QLA2XXX_DEFAULT_TAGS;
1525 lport = vha->vha_tgt.target_lport_ptr;
1527 pr_err("Unable to locate struct tcm_qla2xxx_lport\n");
1532 * Locate the TPG=1 reference..
1536 pr_err("Unable to lcoate struct tcm_qla2xxx_lport->tpg_1\n");
1540 * Format the FCP Initiator port_name into colon seperated values to
1541 * match the format by tcm_qla2xxx explict ConfigFS NodeACLs.
1543 memset(&port_name, 0, 36);
1544 snprintf(port_name, sizeof(port_name), "%8phC", fc_wwpn);
1546 * Locate our struct se_node_acl either from an explict NodeACL created
1547 * via ConfigFS, or via running in TPG demo mode.
1549 se_sess = target_alloc_session(&tpg->se_tpg, num_tags,
1550 sizeof(struct qla_tgt_cmd),
1551 TARGET_PROT_ALL, port_name,
1552 qlat_sess, tcm_qla2xxx_session_cb);
1553 if (IS_ERR(se_sess))
1554 return PTR_ERR(se_sess);
1559 static void tcm_qla2xxx_update_sess(struct fc_port *sess, port_id_t s_id,
1560 uint16_t loop_id, bool conf_compl_supported)
1562 struct qla_tgt *tgt = sess->tgt;
1563 struct qla_hw_data *ha = tgt->ha;
1564 scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
1565 struct tcm_qla2xxx_lport *lport = vha->vha_tgt.target_lport_ptr;
1566 struct se_node_acl *se_nacl = sess->se_sess->se_node_acl;
1567 struct tcm_qla2xxx_nacl *nacl = container_of(se_nacl,
1568 struct tcm_qla2xxx_nacl, se_node_acl);
1572 if (sess->loop_id != loop_id || sess->d_id.b24 != s_id.b24)
1573 pr_info("Updating session %p from port %8phC loop_id %d -> %d s_id %x:%x:%x -> %x:%x:%x\n",
1574 sess, sess->port_name,
1575 sess->loop_id, loop_id, sess->d_id.b.domain,
1576 sess->d_id.b.area, sess->d_id.b.al_pa, s_id.b.domain,
1577 s_id.b.area, s_id.b.al_pa);
1579 if (sess->loop_id != loop_id) {
1581 * Because we can shuffle loop IDs around and we
1582 * update different sessions non-atomically, we might
1583 * have overwritten this session's old loop ID
1584 * already, and we might end up overwriting some other
1585 * session that will be updated later. So we have to
1586 * be extra careful and we can't warn about those things...
1588 if (lport->lport_loopid_map[sess->loop_id].se_nacl == se_nacl)
1589 lport->lport_loopid_map[sess->loop_id].se_nacl = NULL;
1591 lport->lport_loopid_map[loop_id].se_nacl = se_nacl;
1593 sess->loop_id = loop_id;
1596 if (sess->d_id.b24 != s_id.b24) {
1597 key = (((u32) sess->d_id.b.domain << 16) |
1598 ((u32) sess->d_id.b.area << 8) |
1599 ((u32) sess->d_id.b.al_pa));
1601 if (btree_lookup32(&lport->lport_fcport_map, key))
1602 WARN(btree_remove32(&lport->lport_fcport_map, key) !=
1603 se_nacl, "Found wrong se_nacl when updating s_id %x:%x:%x\n",
1604 sess->d_id.b.domain, sess->d_id.b.area,
1605 sess->d_id.b.al_pa);
1607 WARN(1, "No lport_fcport_map entry for s_id %x:%x:%x\n",
1608 sess->d_id.b.domain, sess->d_id.b.area,
1609 sess->d_id.b.al_pa);
1611 key = (((u32) s_id.b.domain << 16) |
1612 ((u32) s_id.b.area << 8) |
1613 ((u32) s_id.b.al_pa));
1615 if (btree_lookup32(&lport->lport_fcport_map, key)) {
1616 WARN(1, "Already have lport_fcport_map entry for s_id %x:%x:%x\n",
1617 s_id.b.domain, s_id.b.area, s_id.b.al_pa);
1618 btree_update32(&lport->lport_fcport_map, key, se_nacl);
1620 btree_insert32(&lport->lport_fcport_map, key, se_nacl,
1625 nacl->nport_id = key;
1628 sess->conf_compl_supported = conf_compl_supported;
1630 /* Reset logout parameters to default */
1631 sess->logout_on_delete = 1;
1632 sess->keep_nport_handle = 0;
1636 * Calls into tcm_qla2xxx used by qla2xxx LLD I/O path.
1638 static struct qla_tgt_func_tmpl tcm_qla2xxx_template = {
1639 .handle_cmd = tcm_qla2xxx_handle_cmd,
1640 .handle_data = tcm_qla2xxx_handle_data,
1641 .handle_tmr = tcm_qla2xxx_handle_tmr,
1642 .free_cmd = tcm_qla2xxx_free_cmd,
1643 .free_mcmd = tcm_qla2xxx_free_mcmd,
1644 .free_session = tcm_qla2xxx_free_session,
1645 .update_sess = tcm_qla2xxx_update_sess,
1646 .check_initiator_node_acl = tcm_qla2xxx_check_initiator_node_acl,
1647 .find_sess_by_s_id = tcm_qla2xxx_find_sess_by_s_id,
1648 .find_sess_by_loop_id = tcm_qla2xxx_find_sess_by_loop_id,
1649 .clear_nacl_from_fcport_map = tcm_qla2xxx_clear_nacl_from_fcport_map,
1650 .put_sess = tcm_qla2xxx_put_sess,
1651 .shutdown_sess = tcm_qla2xxx_shutdown_sess,
1652 .get_dif_tags = tcm_qla2xxx_dif_tags,
1653 .chk_dif_tags = tcm_qla2xxx_chk_dif_tags,
1656 static int tcm_qla2xxx_init_lport(struct tcm_qla2xxx_lport *lport)
1660 rc = btree_init32(&lport->lport_fcport_map);
1662 pr_err("Unable to initialize lport->lport_fcport_map btree\n");
1666 lport->lport_loopid_map = vmalloc(sizeof(struct tcm_qla2xxx_fc_loopid) *
1668 if (!lport->lport_loopid_map) {
1669 pr_err("Unable to allocate lport->lport_loopid_map of %zu bytes\n",
1670 sizeof(struct tcm_qla2xxx_fc_loopid) * 65536);
1671 btree_destroy32(&lport->lport_fcport_map);
1674 memset(lport->lport_loopid_map, 0, sizeof(struct tcm_qla2xxx_fc_loopid)
1676 pr_debug("qla2xxx: Allocated lport_loopid_map of %zu bytes\n",
1677 sizeof(struct tcm_qla2xxx_fc_loopid) * 65536);
1681 static int tcm_qla2xxx_lport_register_cb(struct scsi_qla_host *vha,
1682 void *target_lport_ptr,
1683 u64 npiv_wwpn, u64 npiv_wwnn)
1685 struct qla_hw_data *ha = vha->hw;
1686 struct tcm_qla2xxx_lport *lport =
1687 (struct tcm_qla2xxx_lport *)target_lport_ptr;
1689 * Setup tgt_ops, local pointer to vha and target_lport_ptr
1691 ha->tgt.tgt_ops = &tcm_qla2xxx_template;
1692 vha->vha_tgt.target_lport_ptr = target_lport_ptr;
1693 lport->qla_vha = vha;
1698 static struct se_wwn *tcm_qla2xxx_make_lport(
1699 struct target_fabric_configfs *tf,
1700 struct config_group *group,
1703 struct tcm_qla2xxx_lport *lport;
1707 if (tcm_qla2xxx_parse_wwn(name, &wwpn, 1) < 0)
1708 return ERR_PTR(-EINVAL);
1710 lport = kzalloc(sizeof(struct tcm_qla2xxx_lport), GFP_KERNEL);
1712 pr_err("Unable to allocate struct tcm_qla2xxx_lport\n");
1713 return ERR_PTR(-ENOMEM);
1715 lport->lport_wwpn = wwpn;
1716 tcm_qla2xxx_format_wwn(&lport->lport_name[0], TCM_QLA2XXX_NAMELEN,
1718 sprintf(lport->lport_naa_name, "naa.%016llx", (unsigned long long) wwpn);
1720 ret = tcm_qla2xxx_init_lport(lport);
1724 ret = qlt_lport_register(lport, wwpn, 0, 0,
1725 tcm_qla2xxx_lport_register_cb);
1729 return &lport->lport_wwn;
1731 vfree(lport->lport_loopid_map);
1732 btree_destroy32(&lport->lport_fcport_map);
1735 return ERR_PTR(ret);
1738 static void tcm_qla2xxx_drop_lport(struct se_wwn *wwn)
1740 struct tcm_qla2xxx_lport *lport = container_of(wwn,
1741 struct tcm_qla2xxx_lport, lport_wwn);
1742 struct scsi_qla_host *vha = lport->qla_vha;
1743 struct se_node_acl *node;
1747 * Call into qla2x_target.c LLD logic to complete the
1748 * shutdown of struct qla_tgt after the call to
1749 * qlt_stop_phase1() from tcm_qla2xxx_drop_tpg() above..
1751 if (vha->vha_tgt.qla_tgt && !vha->vha_tgt.qla_tgt->tgt_stopped)
1752 qlt_stop_phase2(vha->vha_tgt.qla_tgt);
1754 qlt_lport_deregister(vha);
1756 vfree(lport->lport_loopid_map);
1757 btree_for_each_safe32(&lport->lport_fcport_map, key, node)
1758 btree_remove32(&lport->lport_fcport_map, key);
1759 btree_destroy32(&lport->lport_fcport_map);
1763 static int tcm_qla2xxx_lport_register_npiv_cb(struct scsi_qla_host *base_vha,
1764 void *target_lport_ptr,
1765 u64 npiv_wwpn, u64 npiv_wwnn)
1767 struct fc_vport *vport;
1768 struct Scsi_Host *sh = base_vha->host;
1769 struct scsi_qla_host *npiv_vha;
1770 struct tcm_qla2xxx_lport *lport =
1771 (struct tcm_qla2xxx_lport *)target_lport_ptr;
1772 struct tcm_qla2xxx_lport *base_lport =
1773 (struct tcm_qla2xxx_lport *)base_vha->vha_tgt.target_lport_ptr;
1774 struct fc_vport_identifiers vport_id;
1776 if (qla_ini_mode_enabled(base_vha)) {
1777 pr_err("qla2xxx base_vha not enabled for target mode\n");
1781 if (!base_lport || !base_lport->tpg_1 ||
1782 !atomic_read(&base_lport->tpg_1->lport_tpg_enabled)) {
1783 pr_err("qla2xxx base_lport or tpg_1 not available\n");
1787 memset(&vport_id, 0, sizeof(vport_id));
1788 vport_id.port_name = npiv_wwpn;
1789 vport_id.node_name = npiv_wwnn;
1790 vport_id.roles = FC_PORT_ROLE_FCP_INITIATOR;
1791 vport_id.vport_type = FC_PORTTYPE_NPIV;
1792 vport_id.disable = false;
1794 vport = fc_vport_create(sh, 0, &vport_id);
1796 pr_err("fc_vport_create failed for qla2xxx_npiv\n");
1800 * Setup local pointer to NPIV vhba + target_lport_ptr
1802 npiv_vha = (struct scsi_qla_host *)vport->dd_data;
1803 npiv_vha->vha_tgt.target_lport_ptr = target_lport_ptr;
1804 lport->qla_vha = npiv_vha;
1805 scsi_host_get(npiv_vha->host);
1810 static struct se_wwn *tcm_qla2xxx_npiv_make_lport(
1811 struct target_fabric_configfs *tf,
1812 struct config_group *group,
1815 struct tcm_qla2xxx_lport *lport;
1816 u64 phys_wwpn, npiv_wwpn, npiv_wwnn;
1820 snprintf(tmp, 128, "%s", name);
1822 p = strchr(tmp, '@');
1824 pr_err("Unable to locate NPIV '@' separator\n");
1825 return ERR_PTR(-EINVAL);
1829 if (tcm_qla2xxx_parse_wwn(tmp, &phys_wwpn, 1) < 0)
1830 return ERR_PTR(-EINVAL);
1832 if (tcm_qla2xxx_npiv_parse_wwn(p, strlen(p)+1,
1833 &npiv_wwpn, &npiv_wwnn) < 0)
1834 return ERR_PTR(-EINVAL);
1836 lport = kzalloc(sizeof(struct tcm_qla2xxx_lport), GFP_KERNEL);
1838 pr_err("Unable to allocate struct tcm_qla2xxx_lport for NPIV\n");
1839 return ERR_PTR(-ENOMEM);
1841 lport->lport_npiv_wwpn = npiv_wwpn;
1842 lport->lport_npiv_wwnn = npiv_wwnn;
1843 sprintf(lport->lport_naa_name, "naa.%016llx", (unsigned long long) npiv_wwpn);
1845 ret = tcm_qla2xxx_init_lport(lport);
1849 ret = qlt_lport_register(lport, phys_wwpn, npiv_wwpn, npiv_wwnn,
1850 tcm_qla2xxx_lport_register_npiv_cb);
1854 return &lport->lport_wwn;
1856 vfree(lport->lport_loopid_map);
1857 btree_destroy32(&lport->lport_fcport_map);
1860 return ERR_PTR(ret);
1863 static void tcm_qla2xxx_npiv_drop_lport(struct se_wwn *wwn)
1865 struct tcm_qla2xxx_lport *lport = container_of(wwn,
1866 struct tcm_qla2xxx_lport, lport_wwn);
1867 struct scsi_qla_host *npiv_vha = lport->qla_vha;
1868 struct qla_hw_data *ha = npiv_vha->hw;
1869 scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
1871 scsi_host_put(npiv_vha->host);
1873 * Notify libfc that we want to release the vha->fc_vport
1875 fc_vport_terminate(npiv_vha->fc_vport);
1876 scsi_host_put(base_vha->host);
1881 static ssize_t tcm_qla2xxx_wwn_version_show(struct config_item *item,
1884 return sprintf(page,
1885 "TCM QLOGIC QLA2XXX NPIV capable fabric module %s on %s/%s on %s\n",
1886 QLA2XXX_VERSION, utsname()->sysname,
1887 utsname()->machine, utsname()->release);
1890 CONFIGFS_ATTR_RO(tcm_qla2xxx_wwn_, version);
1892 static struct configfs_attribute *tcm_qla2xxx_wwn_attrs[] = {
1893 &tcm_qla2xxx_wwn_attr_version,
1897 static const struct target_core_fabric_ops tcm_qla2xxx_ops = {
1898 .module = THIS_MODULE,
1900 .node_acl_size = sizeof(struct tcm_qla2xxx_nacl),
1902 * XXX: Limit assumes single page per scatter-gather-list entry.
1903 * Current maximum is ~4.9 MB per se_cmd->t_data_sg with PAGE_SIZE=4096
1905 .max_data_sg_nents = 1200,
1906 .get_fabric_name = tcm_qla2xxx_get_fabric_name,
1907 .tpg_get_wwn = tcm_qla2xxx_get_fabric_wwn,
1908 .tpg_get_tag = tcm_qla2xxx_get_tag,
1909 .tpg_check_demo_mode = tcm_qla2xxx_check_demo_mode,
1910 .tpg_check_demo_mode_cache = tcm_qla2xxx_check_demo_mode_cache,
1911 .tpg_check_demo_mode_write_protect =
1912 tcm_qla2xxx_check_demo_write_protect,
1913 .tpg_check_prod_mode_write_protect =
1914 tcm_qla2xxx_check_prod_write_protect,
1915 .tpg_check_prot_fabric_only = tcm_qla2xxx_check_prot_fabric_only,
1916 .tpg_check_demo_mode_login_only = tcm_qla2xxx_check_demo_mode_login_only,
1917 .tpg_get_inst_index = tcm_qla2xxx_tpg_get_inst_index,
1918 .check_stop_free = tcm_qla2xxx_check_stop_free,
1919 .release_cmd = tcm_qla2xxx_release_cmd,
1920 .close_session = tcm_qla2xxx_close_session,
1921 .sess_get_index = tcm_qla2xxx_sess_get_index,
1922 .sess_get_initiator_sid = NULL,
1923 .write_pending = tcm_qla2xxx_write_pending,
1924 .write_pending_status = tcm_qla2xxx_write_pending_status,
1925 .set_default_node_attributes = tcm_qla2xxx_set_default_node_attrs,
1926 .get_cmd_state = tcm_qla2xxx_get_cmd_state,
1927 .queue_data_in = tcm_qla2xxx_queue_data_in,
1928 .queue_status = tcm_qla2xxx_queue_status,
1929 .queue_tm_rsp = tcm_qla2xxx_queue_tm_rsp,
1930 .aborted_task = tcm_qla2xxx_aborted_task,
1932 * Setup function pointers for generic logic in
1933 * target_core_fabric_configfs.c
1935 .fabric_make_wwn = tcm_qla2xxx_make_lport,
1936 .fabric_drop_wwn = tcm_qla2xxx_drop_lport,
1937 .fabric_make_tpg = tcm_qla2xxx_make_tpg,
1938 .fabric_drop_tpg = tcm_qla2xxx_drop_tpg,
1939 .fabric_init_nodeacl = tcm_qla2xxx_init_nodeacl,
1941 .tfc_wwn_attrs = tcm_qla2xxx_wwn_attrs,
1942 .tfc_tpg_base_attrs = tcm_qla2xxx_tpg_attrs,
1943 .tfc_tpg_attrib_attrs = tcm_qla2xxx_tpg_attrib_attrs,
1946 static const struct target_core_fabric_ops tcm_qla2xxx_npiv_ops = {
1947 .module = THIS_MODULE,
1948 .name = "qla2xxx_npiv",
1949 .node_acl_size = sizeof(struct tcm_qla2xxx_nacl),
1950 .get_fabric_name = tcm_qla2xxx_npiv_get_fabric_name,
1951 .tpg_get_wwn = tcm_qla2xxx_get_fabric_wwn,
1952 .tpg_get_tag = tcm_qla2xxx_get_tag,
1953 .tpg_check_demo_mode = tcm_qla2xxx_check_demo_mode,
1954 .tpg_check_demo_mode_cache = tcm_qla2xxx_check_demo_mode_cache,
1955 .tpg_check_demo_mode_write_protect = tcm_qla2xxx_check_demo_mode,
1956 .tpg_check_prod_mode_write_protect =
1957 tcm_qla2xxx_check_prod_write_protect,
1958 .tpg_check_demo_mode_login_only = tcm_qla2xxx_check_demo_mode_login_only,
1959 .tpg_get_inst_index = tcm_qla2xxx_tpg_get_inst_index,
1960 .check_stop_free = tcm_qla2xxx_check_stop_free,
1961 .release_cmd = tcm_qla2xxx_release_cmd,
1962 .close_session = tcm_qla2xxx_close_session,
1963 .sess_get_index = tcm_qla2xxx_sess_get_index,
1964 .sess_get_initiator_sid = NULL,
1965 .write_pending = tcm_qla2xxx_write_pending,
1966 .write_pending_status = tcm_qla2xxx_write_pending_status,
1967 .set_default_node_attributes = tcm_qla2xxx_set_default_node_attrs,
1968 .get_cmd_state = tcm_qla2xxx_get_cmd_state,
1969 .queue_data_in = tcm_qla2xxx_queue_data_in,
1970 .queue_status = tcm_qla2xxx_queue_status,
1971 .queue_tm_rsp = tcm_qla2xxx_queue_tm_rsp,
1972 .aborted_task = tcm_qla2xxx_aborted_task,
1974 * Setup function pointers for generic logic in
1975 * target_core_fabric_configfs.c
1977 .fabric_make_wwn = tcm_qla2xxx_npiv_make_lport,
1978 .fabric_drop_wwn = tcm_qla2xxx_npiv_drop_lport,
1979 .fabric_make_tpg = tcm_qla2xxx_npiv_make_tpg,
1980 .fabric_drop_tpg = tcm_qla2xxx_drop_tpg,
1981 .fabric_init_nodeacl = tcm_qla2xxx_init_nodeacl,
1983 .tfc_wwn_attrs = tcm_qla2xxx_wwn_attrs,
1984 .tfc_tpg_base_attrs = tcm_qla2xxx_npiv_tpg_attrs,
1987 static int tcm_qla2xxx_register_configfs(void)
1991 pr_debug("TCM QLOGIC QLA2XXX fabric module %s on %s/%s on %s\n",
1992 QLA2XXX_VERSION, utsname()->sysname,
1993 utsname()->machine, utsname()->release);
1995 ret = target_register_template(&tcm_qla2xxx_ops);
1999 ret = target_register_template(&tcm_qla2xxx_npiv_ops);
2003 tcm_qla2xxx_free_wq = alloc_workqueue("tcm_qla2xxx_free",
2005 if (!tcm_qla2xxx_free_wq) {
2007 goto out_fabric_npiv;
2010 tcm_qla2xxx_cmd_wq = alloc_workqueue("tcm_qla2xxx_cmd", 0, 0);
2011 if (!tcm_qla2xxx_cmd_wq) {
2019 destroy_workqueue(tcm_qla2xxx_free_wq);
2021 target_unregister_template(&tcm_qla2xxx_npiv_ops);
2023 target_unregister_template(&tcm_qla2xxx_ops);
2027 static void tcm_qla2xxx_deregister_configfs(void)
2029 destroy_workqueue(tcm_qla2xxx_cmd_wq);
2030 destroy_workqueue(tcm_qla2xxx_free_wq);
2032 target_unregister_template(&tcm_qla2xxx_ops);
2033 target_unregister_template(&tcm_qla2xxx_npiv_ops);
2036 static int __init tcm_qla2xxx_init(void)
2040 ret = tcm_qla2xxx_register_configfs();
2047 static void __exit tcm_qla2xxx_exit(void)
2049 tcm_qla2xxx_deregister_configfs();
2052 MODULE_DESCRIPTION("TCM QLA24XX+ series NPIV enabled fabric driver");
2053 MODULE_LICENSE("GPL");
2054 module_init(tcm_qla2xxx_init);
2055 module_exit(tcm_qla2xxx_exit);