1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause
92 	const struct icl_module *im;  in sysctl_kern_icl_offloads()  local
99 	sx_slock(&sc->sc_lock);  in sysctl_kern_icl_offloads()
100 	TAILQ_FOREACH(im, &sc->sc_modules, im_next) {  in sysctl_kern_icl_offloads()
101 		if (im->im_iser != iser)  in sysctl_kern_icl_offloads()
103 		if (im != TAILQ_FIRST(&sc->sc_modules))  in sysctl_kern_icl_offloads()
105 		sbuf_printf(&sb, "%s", im->im_name);  in sysctl_kern_icl_offloads()
107 	sx_sunlock(&sc->sc_lock);  in sysctl_kern_icl_offloads()
119 	struct icl_module *im, *im_max;  in icl_find()  local
121 	sx_assert(&sc->sc_lock, SA_LOCKED);  in icl_find()
129 		TAILQ_FOREACH(im, &sc->sc_modules, im_next) {  in icl_find()
130 			if (im->im_iser != iser)  in icl_find()
133 			    im->im_priority > im_max->im_priority)  in icl_find()
134 				im_max = im;  in icl_find()
138 			ICL_WARN("no iSER-capable offload found");  in icl_find()
143 	TAILQ_FOREACH(im, &sc->sc_modules, im_next) {  in icl_find()
144 		if (strcasecmp(im->im_name, name) != 0)  in icl_find()
147 		if (!im->im_iser && iser && !quiet) {  in icl_find()
148 			ICL_WARN("offload \"%s\" is not iSER-capable", name);  in icl_find()
151 		if (im->im_iser && !iser && !quiet) {  in icl_find()
152 			ICL_WARN("offload \"%s\" is iSER-only", name);  in icl_find()
156 		return (im);  in icl_find()
168 	struct icl_module *im;  in icl_new_conn()  local
171 	sx_slock(&sc->sc_lock);  in icl_new_conn()
172 	im = icl_find(offload, iser, false);  in icl_new_conn()
173 	if (im == NULL) {  in icl_new_conn()
174 		sx_sunlock(&sc->sc_lock);  in icl_new_conn()
178 	ic = im->im_new_conn(name, lock);  in icl_new_conn()
179 	sx_sunlock(&sc->sc_lock);  in icl_new_conn()
188 	struct icl_module *im;  in icl_limits()  local
192 	sx_slock(&sc->sc_lock);  in icl_limits()
193 	im = icl_find(offload, iser, false);  in icl_limits()
194 	if (im == NULL) {  in icl_limits()
195 		sx_sunlock(&sc->sc_lock);  in icl_limits()
199 	error = im->im_limits(idl, socket);  in icl_limits()
200 	sx_sunlock(&sc->sc_lock);  in icl_limits()
211 	    (OUT_OF_RANGE(idl->idl_max_recv_data_segment_length, 512, 16777215) ||  in icl_limits()
212 	    OUT_OF_RANGE(idl->idl_max_send_data_segment_length, 512, 16777215) ||  in icl_limits()
213 	    OUT_OF_RANGE(idl->idl_max_burst_length, 512, 16777215) ||  in icl_limits()
214 	    OUT_OF_RANGE(idl->idl_first_burst_length, 512, 16777215))) {  in icl_limits()
223 	if (error == 0 && idl->idl_first_burst_length > 0 &&  in icl_limits()
224 	    idl->idl_max_burst_length > 0 &&  in icl_limits()
225 	    idl->idl_first_burst_length > idl->idl_max_burst_length) {  in icl_limits()
237 	struct icl_module *im;  in icl_register()  local
239 	sx_xlock(&sc->sc_lock);  in icl_register()
240 	im = icl_find(offload, iser, true);  in icl_register()
241 	if (im != NULL) {  in icl_register()
243 		sx_xunlock(&sc->sc_lock);  in icl_register()
247 	im = malloc(sizeof(*im), M_ICL, M_ZERO | M_WAITOK);  in icl_register()
248 	im->im_name = strdup(offload, M_ICL);  in icl_register()
249 	im->im_iser = iser;  in icl_register()
250 	im->im_priority = priority;  in icl_register()
251 	im->im_limits = limits;  in icl_register()
252 	im->im_new_conn = new_conn;  in icl_register()
254 	TAILQ_INSERT_HEAD(&sc->sc_modules, im, im_next);  in icl_register()
255 	sx_xunlock(&sc->sc_lock);  in icl_register()
264 	struct icl_module *im;  in icl_unregister()  local
266 	sx_xlock(&sc->sc_lock);  in icl_unregister()
267 	im = icl_find(offload, rdma, true);  in icl_unregister()
268 	if (im == NULL) {  in icl_unregister()
270 		sx_xunlock(&sc->sc_lock);  in icl_unregister()
274 	TAILQ_REMOVE(&sc->sc_modules, im, im_next);  in icl_unregister()
275 	sx_xunlock(&sc->sc_lock);  in icl_unregister()
277 	free(im->im_name, M_ICL);  in icl_unregister()
278 	free(im, M_ICL);  in icl_unregister()
289 	sx_init(&sc->sc_lock, "icl");  in icl_load()
290 	TAILQ_INIT(&sc->sc_modules);  in icl_load()
299 	sx_slock(&sc->sc_lock);  in icl_unload()
300 	KASSERT(TAILQ_EMPTY(&sc->sc_modules), ("still have modules"));  in icl_unload()
301 	sx_sunlock(&sc->sc_lock);  in icl_unload()
303 	sx_destroy(&sc->sc_lock);  in icl_unload()