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/*
Copyright (C) 2011 by Ronnie Sahlberg <ronniesahlberg@gmail.com>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#ifdef HAVE_ARPA_INET_H
#include <arpa/inet.h>
#endif
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#include <stdio.h>
#include "iscsi.h"
#include "iscsi-private.h"
#include "scsi-lowlevel.h"
int
iscsi_task_mgmt_async(struct iscsi_context *iscsi,
int lun, enum iscsi_task_mgmt_funcs function,
uint32_t ritt, uint32_t rcmdsn,
iscsi_command_cb cb, void *private_data)
{
struct iscsi_pdu *pdu;
if (iscsi->is_loggedin == 0) {
iscsi_set_error(iscsi, "trying to send task-mgmt while not "
"logged in");
return -1;
}
pdu = iscsi_allocate_pdu(iscsi,
ISCSI_PDU_SCSI_TASK_MANAGEMENT_REQUEST,
ISCSI_PDU_SCSI_TASK_MANAGEMENT_RESPONSE,
iscsi_itt_post_increment(iscsi),
ISCSI_PDU_DROP_ON_RECONNECT);
if (pdu == NULL) {
iscsi_set_error(iscsi, "Failed to allocate task mgmt pdu");
return -1;
}
/* immediate flag */
iscsi_pdu_set_immediate(pdu);
/* flags */
iscsi_pdu_set_pduflags(pdu, 0x80 | function);
/* lun */
iscsi_pdu_set_lun(pdu, lun);
/* ritt */
iscsi_pdu_set_ritt(pdu, ritt);
/* cmdsn is not increased if Immediate delivery*/
iscsi_pdu_set_cmdsn(pdu, iscsi->cmdsn);
/* rcmdsn */
iscsi_pdu_set_rcmdsn(pdu, rcmdsn);
pdu->callback = cb;
pdu->private_data = private_data;
if (iscsi_queue_pdu(iscsi, pdu) != 0) {
iscsi_set_error(iscsi, "failed to queue iscsi taskmgmt pdu");
iscsi->drv->free_pdu(iscsi, pdu);
return -1;
}
return 0;
}
int
iscsi_process_task_mgmt_reply(struct iscsi_context *iscsi, struct iscsi_pdu *pdu,
struct iscsi_in_pdu *in)
{
uint32_t response = in->hdr[2];
if (pdu->callback) {
pdu->callback(iscsi, SCSI_STATUS_GOOD, &response, pdu->private_data);
}
return 0;
}
int
iscsi_task_mgmt_abort_task_async(struct iscsi_context *iscsi,
struct scsi_task *task,
iscsi_command_cb cb, void *private_data)
{
return iscsi_task_mgmt_async(iscsi,
task->lun, ISCSI_TM_ABORT_TASK,
task->itt, task->cmdsn,
cb, private_data);
}
int
iscsi_task_mgmt_abort_task_set_async(struct iscsi_context *iscsi,
uint32_t lun,
iscsi_command_cb cb, void *private_data)
{
iscsi_scsi_cancel_all_tasks(iscsi);
return iscsi_task_mgmt_async(iscsi,
lun, ISCSI_TM_ABORT_TASK_SET,
0xffffffff, 0,
cb, private_data);
}
int
iscsi_task_mgmt_lun_reset_async(struct iscsi_context *iscsi,
uint32_t lun,
iscsi_command_cb cb, void *private_data)
{
iscsi_scsi_cancel_all_tasks(iscsi);
return iscsi_task_mgmt_async(iscsi,
lun, ISCSI_TM_LUN_RESET,
0xffffffff, 0,
cb, private_data);
}
int
iscsi_task_mgmt_target_warm_reset_async(struct iscsi_context *iscsi,
iscsi_command_cb cb, void *private_data)
{
iscsi_scsi_cancel_all_tasks(iscsi);
return iscsi_task_mgmt_async(iscsi,
0, ISCSI_TM_TARGET_WARM_RESET,
0xffffffff, 0,
cb, private_data);
}
int
iscsi_task_mgmt_target_cold_reset_async(struct iscsi_context *iscsi,
iscsi_command_cb cb, void *private_data)
{
iscsi_scsi_cancel_all_tasks(iscsi);
return iscsi_task_mgmt_async(iscsi,
0, ISCSI_TM_TARGET_COLD_RESET,
0xffffffff, 0,
cb, private_data);
}
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