inet/ip/ip_if.c

753 	ipxop_t	*ipx = ipif->ipif_ill->ill_phyint->phyint_ipsq->ipsq_xop;
758 	ASSERT(ipx->ipx_pending_mp == NULL);
765 	ASSERT(ipx->ipx_current_ipif != NULL);
786 	mutex_enter(&ipx->ipx_lock);
787 	ipx->ipx_pending_ipif = ipif;
795 	ipx->ipx_pending_mp = add_mp;
796 	ipx->ipx_waitfor = waitfor;
797 	mutex_exit(&ipx->ipx_lock);
813 	ipxop_t	*ipx = ipsq->ipsq_xop;
816 	mutex_enter(&ipx->ipx_lock);
817 	if (ipx->ipx_pending_mp == NULL) {
818 		mutex_exit(&ipx->ipx_lock);
823 	curr = ipx->ipx_pending_mp;
825 	ipx->ipx_pending_ipif = NULL;
826 	ipx->ipx_pending_mp = NULL;
827 	ipx->ipx_waitfor = 0;
828 	mutex_exit(&ipx->ipx_lock);
857 	ipxop_t	*ipx;
863 	ipx = ill->ill_phyint->phyint_ipsq->ipsq_xop;
865 	mutex_enter(&ipx->ipx_lock);
866 	mp = ipx->ipx_pending_mp;
874 			mutex_exit(&ipx->ipx_lock);
886 			mutex_exit(&ipx->ipx_lock);
892 	ipx->ipx_pending_mp = NULL;
893 	ipif = ipx->ipx_pending_ipif;
894 	ipx->ipx_pending_ipif = NULL;
895 	ipx->ipx_waitfor = 0;
896 	ipx->ipx_current_ipif = NULL;
897 	cmd = ipx->ipx_current_ioctl;
898 	ipx->ipx_current_ioctl = 0;
899 	ipx->ipx_current_done = B_TRUE;
900 	mutex_exit(&ipx->ipx_lock);
3307 	ipxop_t	*ipx;
3313 	ipx = ipsq->ipsq_xop = &ipsq->ipsq_ownxop;
3314 	ipx->ipx_ipsq = ipsq;
3318 	mutex_init(&ipx->ipx_lock, NULL, MUTEX_DEFAULT, 0);
3321 		ipx->ipx_writer = curthread;
3322 		ipx->ipx_forced = B_FALSE;
3323 		ipx->ipx_reentry_cnt = 1;
3325 		ipx->ipx_depth = getpcstack(ipx->ipx_stack, IPX_STACK_DEPTH);
4925 	ipxop_t	*ipx;
4938 	ipx = ipsq->ipsq_xop;
4939 	mutex_enter(&ipx->ipx_lock);
4940 	if (ipx->ipx_waitfor == 0)	/* no one's waiting; bail */
4943 	ASSERT(ipx->ipx_pending_mp != NULL && ipx->ipx_pending_ipif != NULL);
4945 	ipif = ipx->ipx_pending_ipif;
4949 	switch (ipx->ipx_waitfor) {
4973 		    (void *)ipsq, ipx->ipx_waitfor);
4977 	mutex_exit(&ipx->ipx_lock);
5031 	mutex_exit(&ipx->ipx_lock);
6216 	ipxop_t *ipx = ipsq->ipsq_xop;
6219 	ASSERT(MUTEX_HELD(&ipx->ipx_lock));
6228 		if (ipx->ipx_mptail != NULL) {
6229 			ASSERT(ipx->ipx_mphead != NULL);
6230 			ipx->ipx_mptail->b_next = mp;
6232 			ASSERT(ipx->ipx_mphead == NULL);
6233 			ipx->ipx_mphead = mp;
6235 		ipx->ipx_mptail = mp;
6247 		ipx->ipx_ipsq_queued = B_TRUE;
6255 		ipx->ipx_ipsq_queued = B_TRUE;
6300 	ipxop_t *ipx;
6312 	ipx = ipsq->ipsq_xop;
6313 	mutex_enter(&ipx->ipx_lock);
6319 	if ((mp = ipx->ipx_mphead) != NULL) {
6320 		ipx->ipx_mphead = mp->b_next;
6321 		if (ipx->ipx_mphead == NULL)
6322 			ipx->ipx_mptail = NULL;
6327 	if (ipx->ipx_current_ipif != NULL)
6357 			xopipsq = ipx->ipx_ipsq;
6374 			mutex_exit(&ipx->ipx_lock);
6377 			 * Third, set ipx to point to our own xop (which was
6380 			ipx = ipsq->ipsq_xop;
6381 			mutex_enter(&ipx->ipx_lock);
6382 			ASSERT(ipx->ipx_writer == NULL);
6383 			ASSERT(ipx->ipx_current_ipif == NULL);
6413 			ASSERT(ipx->ipx_writer == curthread);
6414 			ipx->ipx_writer = NULL;
6415 			VERIFY(--ipx->ipx_reentry_cnt == 0);
6416 			ipx->ipx_ipsq_queued = B_FALSE;
6417 			mutex_exit(&ipx->ipx_lock);
6420 			 * Third, set ipx to point to our new xop, and check
6426 			ipx = ipsq->ipsq_xop;
6427 			mutex_enter(&ipx->ipx_lock);
6428 			if (ipx->ipx_writer != NULL ||
6429 			    ipx->ipx_current_ipif != NULL) {
6435 		 * Fourth, become writer on our new ipx before we continue
6439 		 * no other thread can examine the ipx right now.
6441 		ASSERT(ipx->ipx_current_ipif == NULL);
6442 		ASSERT(ipx->ipx_mphead == NULL && ipx->ipx_mptail == NULL);
6443 		VERIFY(ipx->ipx_reentry_cnt++ == 0);
6444 		ipx->ipx_writer = curthread;
6445 		ipx->ipx_forced = B_FALSE;
6447 		ipx->ipx_depth = getpcstack(ipx->ipx_stack, IPX_STACK_DEPTH);
6478 	ipx->ipx_writer = NULL;
6479 	ipx->ipx_forced = B_FALSE;
6480 	VERIFY(--ipx->ipx_reentry_cnt == 0);
6481 	ipx->ipx_ipsq_queued = B_FALSE;
6484 	ipx->ipx_depth = 0;
6487 	mutex_exit(&ipx->ipx_lock);
6584 	ipxop_t *ipx;
6607 		ipx = ipsq->ipsq_xop;
6608 		mutex_enter(&ipx->ipx_lock);
6610 		if (ipx->ipx_writer == NULL && (type == CUR_OP ||
6611 		    (ipx->ipx_current_ipif == NULL && ipsq_dlpi_done(ipsq)) ||
6617 		if (!force || ipx->ipx_writer != NULL) {
6618 			mutex_exit(&ipx->ipx_lock);
6622 			mutex_exit(&ipx->ipx_lock);
6631 	ASSERT(ipx->ipx_mphead == NULL && ipx->ipx_mptail == NULL);
6632 	ASSERT(ipx->ipx_reentry_cnt == 0);
6633 	ipx->ipx_writer = curthread;
6634 	ipx->ipx_forced = (ipx->ipx_current_ipif != NULL);
6635 	ipx->ipx_reentry_cnt++;
6637 	ipx->ipx_depth = getpcstack(ipx->ipx_stack, IPX_STACK_DEPTH);
6639 	mutex_exit(&ipx->ipx_lock);
6659 	ipxop_t	*ipx;
6666 	 * ipx of an ipsq can't change when ipsq_lock is held.
6673 	ipx = ipsq->ipsq_xop;
6674 	mutex_enter(&ipx->ipx_lock);
6688 	if ((ipx->ipx_writer == curthread && reentry_ok) ||
6689 	    (ipx->ipx_writer == NULL && (type == CUR_OP || (type == NEW_OP &&
6690 	    !ipx->ipx_ipsq_queued && ipx->ipx_current_ipif == NULL &&
6693 		ipx->ipx_reentry_cnt++;
6694 		ipx->ipx_writer = curthread;
6695 		ipx->ipx_forced = B_FALSE;
6696 		mutex_exit(&ipx->ipx_lock);
6701 		ipx->ipx_depth = getpcstack(ipx->ipx_stack, IPX_STACK_DEPTH);
6709 	mutex_exit(&ipx->ipx_lock);
6897 	ipxop_t *ipx = ipsq->ipsq_xop;
6900 	ASSERT(ipx->ipx_current_ipif == NULL);
6901 	ASSERT(ipx->ipx_current_ioctl == 0);
6903 	ipx->ipx_current_done = B_FALSE;
6904 	ipx->ipx_current_ioctl = ioccmd;
6905 	mutex_enter(&ipx->ipx_lock);
6906 	ipx->ipx_current_ipif = ipif;
6907 	mutex_exit(&ipx->ipx_lock);
6954 	ipxop_t	*ipx = ipsq->ipsq_xop;
6956 	ipif_t	*ipif = ipx->ipx_current_ipif;
6965 	if (ipx->ipx_current_ioctl != SIOCLIFREMOVEIF) {
6970 		if (ipx->ipx_current_ioctl == 0) {
6980 	ASSERT(!ipx->ipx_current_done);
6981 	ipx->ipx_current_done = B_TRUE;
6982 	ipx->ipx_current_ioctl = 0;
6984 		mutex_enter(&ipx->ipx_lock);
6985 		ipx->ipx_current_ipif = NULL;
6986 		mutex_exit(&ipx->ipx_lock);
7003 	ipxop_t	*ipx = ill->ill_phyint->phyint_ipsq->ipsq_xop;
7010 	mutex_enter(&ipx->ipx_lock);
7011 	for (prev = NULL, mp = ipx->ipx_mphead; mp != NULL; mp = mp_next) {
7017 				ipx->ipx_mphead = mp->b_next;
7020 			if (ipx->ipx_mptail == mp) {
7022 				ipx->ipx_mptail = prev;
7029 	mutex_exit(&ipx->ipx_lock);
11846 	ipxop_t *ipx = ipsq->ipsq_xop;
11867 	if (ipx->ipx_current_ipif == sipif) {
11868 		ASSERT(ipx->ipx_pending_ipif == NULL);
11869 		mutex_enter(&ipx->ipx_lock);
11870 		ipx->ipx_current_ipif = dipif;
11871 		mutex_exit(&ipx->ipx_lock);
12370 	ipxop_t *ipx = ipsq->ipsq_xop;
12375 	ASSERT(ipsq->ipsq_xopq_mphead == NULL && ipx->ipx_mphead == NULL);
12376 	ASSERT(ipx->ipx_pending_mp == NULL);
12980 	ipxop_t *ipx = ipsq->ipsq_xop;
12993 		if (ipx->ipx_current_done) {
12994 			mutex_enter(&ipx->ipx_lock);
12995 			ipx->ipx_current_ipif = NULL;
12996 			mutex_exit(&ipx->ipx_lock);