84 chacha20_randomstir(struct chacha20_s *chacha20)  in chacha20_randomstir()  argument
143 	mtx_lock(&chacha20->mtx);  in chacha20_randomstir()
144 	chacha_keysetup(&chacha20->ctx, key, CHACHA20_KEYBYTES*8);  in chacha20_randomstir()
145 	chacha_ivsetup(&chacha20->ctx, (u_char *)&tv_now.tv_sec, (u_char *)&tv_now.tv_usec);  in chacha20_randomstir()
147 	chacha20->t_reseed = tv_now.tv_sec + CHACHA20_RESEED_SECONDS;  in chacha20_randomstir()
148 	chacha20->numbytes = 0;  in chacha20_randomstir()
150 	chacha20->seed_version = seed_version;  in chacha20_randomstir()
152 	mtx_unlock(&chacha20->mtx);  in chacha20_randomstir()
161 	struct chacha20_s *chacha20;  local
167 	CHACHA20_FOREACH(chacha20) {
168 		mtx_init(&chacha20->mtx, "chacha20_mtx", NULL, MTX_DEF);
169 		chacha20->t_reseed = -1;
170 		chacha20->numbytes = 0;
171 		explicit_bzero(chacha20->m_buffer, CHACHA20_BUFFER_SIZE);
172 		explicit_bzero(&chacha20->ctx, sizeof(chacha20->ctx));
175 SYSINIT(chacha20, SI_SUB_LOCK, SI_ORDER_ANY, chacha20_init, NULL);
181 	struct chacha20_s *chacha20;  local
183 	CHACHA20_FOREACH(chacha20)
184 		mtx_destroy(&chacha20->mtx);
187 SYSUNINIT(chacha20, SI_SUB_LOCK, SI_ORDER_ANY, chacha20_uninit, NULL);
196 	struct chacha20_s *chacha20;  local
208 		CHACHA20_FOREACH(chacha20)
209 			chacha20_randomstir(chacha20);
212 	chacha20 = &chacha20inst[curcpu];
214 	if ((chacha20->numbytes > CHACHA20_RESEED_BYTES) || (tv.tv_sec > chacha20->t_reseed))
215 		chacha20_randomstir(chacha20);
217 	mtx_lock(&chacha20->mtx);
220 	    atomic_load_acq_64(&fxrng_root_generation) != chacha20->seed_version
222 		mtx_unlock(&chacha20->mtx);
223 		chacha20_randomstir(chacha20);
224 		mtx_lock(&chacha20->mtx);
231 		chacha_encrypt_bytes(&chacha20->ctx, chacha20->m_buffer, p, length);
234 		chacha20->numbytes += length;
235 		if (chacha20->numbytes > CHACHA20_RESEED_BYTES) {
236 			mtx_unlock(&chacha20->mtx);
237 			chacha20_randomstir(chacha20);
238 			mtx_lock(&chacha20->mtx);
241 	mtx_unlock(&chacha20->mtx);