1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause
29  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
32  * $Id: //depot/users/kenm/FreeBSD-test2/sys/cam/ctl/ctl_backend.c#3 $
51 #include <cam/scsi/scsi_all.h>
52 #include <cam/scsi/scsi_da.h>
53 #include <cam/ctl/ctl_io.h>
54 #include <cam/ctl/ctl.h>
55 #include <cam/ctl/ctl_frontend.h>
56 #include <cam/ctl/ctl_backend.h>
57 #include <cam/ctl/ctl_ioctl.h>
58 #include <cam/ctl/ctl_ha.h>
59 #include <cam/ctl/ctl_private.h>
60 #include <cam/ctl/ctl_debug.h>
70 	mtx_lock(&softc->ctl_lock);  in ctl_backend_register()
71 	STAILQ_FOREACH(be_tmp, &softc->be_list, links) {  in ctl_backend_register()
72 		if (strcmp(be_tmp->name, be->name) == 0) {  in ctl_backend_register()
73 			mtx_unlock(&softc->ctl_lock);  in ctl_backend_register()
74 			return (-1);  in ctl_backend_register()
77 	mtx_unlock(&softc->ctl_lock);  in ctl_backend_register()
79 	be->config_move_done = ctl_config_move_done;  in ctl_backend_register()
83 	if (be->init != NULL) {  in ctl_backend_register()
84 		if ((error = be->init()) != 0) {  in ctl_backend_register()
86 			    be->name, error);  in ctl_backend_register()
91 	mtx_lock(&softc->ctl_lock);  in ctl_backend_register()
92 	STAILQ_INSERT_TAIL(&softc->be_list, be, links);  in ctl_backend_register()
93 	softc->num_backends++;  in ctl_backend_register()
94 	mtx_unlock(&softc->ctl_lock);  in ctl_backend_register()
105 	if (be->shutdown != NULL) {  in ctl_backend_deregister()
106 		if ((error = be->shutdown()) != 0) {  in ctl_backend_deregister()
108 			    be->name, error);  in ctl_backend_deregister()
113 	mtx_lock(&softc->ctl_lock);  in ctl_backend_deregister()
114 	STAILQ_REMOVE(&softc->be_list, be, ctl_backend_driver, links);  in ctl_backend_deregister()
115 	softc->num_backends--;  in ctl_backend_deregister()
116 	mtx_unlock(&softc->ctl_lock);  in ctl_backend_deregister()
126 	mtx_lock(&softc->ctl_lock);  in ctl_backend_find()
127 	STAILQ_FOREACH(be_tmp, &softc->be_list, links) {  in ctl_backend_find()
128 		if (strcmp(be_tmp->name, backend_name) == 0) {  in ctl_backend_find()
129 			mtx_unlock(&softc->ctl_lock);  in ctl_backend_find()
133 	mtx_unlock(&softc->ctl_lock);  in ctl_backend_find()