466 static int fc_seq_send(struct fc_lport *lport, struct fc_seq *sp,  in fc_seq_send()  argument
496 	error = lport->tt.frame_send(lport, fp);  in fc_seq_send()
711 static struct fc_exch *fc_exch_em_alloc(struct fc_lport *lport,  in fc_exch_em_alloc()  argument
774 	ep->lp = lport;  in fc_exch_em_alloc()
799 static inline struct fc_exch *fc_exch_alloc(struct fc_lport *lport,  in fc_exch_alloc()  argument
804 	list_for_each_entry(ema, &lport->ema_list, ema_list)  in fc_exch_alloc()
806 			return fc_exch_em_alloc(lport, ema->mp);  in fc_exch_alloc()
857 static struct fc_exch *fc_exch_resp(struct fc_lport *lport,  in fc_exch_resp()  argument
864 	ep = fc_exch_alloc(lport, fp);  in fc_exch_resp()
905 static enum fc_pf_rjt_reason fc_seq_lookup_recip(struct fc_lport *lport,  in fc_seq_lookup_recip()  argument
960 			ep = fc_exch_resp(lport, mp, fp);  in fc_seq_lookup_recip()
1145 	struct fc_lport *lport = ep->lp;  in fc_seq_send_ack()  local
1152 		fp = fc_frame_alloc(lport, 0);  in fc_seq_send_ack()
1187 		lport->tt.frame_send(lport, fp);  in fc_seq_send_ack()
1207 	struct fc_lport *lport;  in fc_exch_send_ba_rjt()  local
1210 	lport = fr_dev(rx_fp);  in fc_exch_send_ba_rjt()
1211 	fp = fc_frame_alloc(lport, sizeof(*rp));  in fc_exch_send_ba_rjt()
1256 	lport->tt.frame_send(lport, fp);  in fc_exch_send_ba_rjt()
1324 static struct fc_seq *fc_seq_assign(struct fc_lport *lport, struct fc_frame *fp)  in fc_seq_assign()  argument
1328 	WARN_ON(lport != fr_dev(fp));  in fc_seq_assign()
1332 	list_for_each_entry(ema, &lport->ema_list, ema_list)  in fc_seq_assign()
1334 		    fc_seq_lookup_recip(lport, ema->mp, fp) == FC_RJT_NONE)  in fc_seq_assign()
1357 static void fc_exch_recv_req(struct fc_lport *lport, struct fc_exch_mgr *mp,  in fc_exch_recv_req()  argument
1368 	lport = fc_vport_id_lookup(lport, ntoh24(fh->fh_d_id));  in fc_exch_recv_req()
1369 	if (!lport) {  in fc_exch_recv_req()
1373 	fr_dev(fp) = lport;  in fc_exch_recv_req()
1382 		return lport->tt.lport_recv(lport, fp);  in fc_exch_recv_req()
1384 	reject = fc_seq_lookup_recip(lport, mp, fp);  in fc_exch_recv_req()
1405 			lport->tt.lport_recv(lport, fp);  in fc_exch_recv_req()
1408 		FC_LPORT_DBG(lport, "exch/seq lookup failed: reject %x\n",  in fc_exch_recv_req()
1682 	struct fc_lport *lport;  in fc_seq_ls_acc()  local
1686 	lport = fr_dev(rx_fp);  in fc_seq_ls_acc()
1687 	fp = fc_frame_alloc(lport, sizeof(*acc));  in fc_seq_ls_acc()
1694 	lport->tt.frame_send(lport, fp);  in fc_seq_ls_acc()
1709 	struct fc_lport *lport;  in fc_seq_ls_rjt()  local
1713 	lport = fr_dev(rx_fp);  in fc_seq_ls_rjt()
1714 	fp = fc_frame_alloc(lport, sizeof(*rjt));  in fc_seq_ls_rjt()
1723 	lport->tt.frame_send(lport, fp);  in fc_seq_ls_rjt()
1770 static void fc_exch_pool_reset(struct fc_lport *lport,  in fc_exch_pool_reset()  argument
1780 		if ((lport == ep->lp) &&  in fc_exch_pool_reset()
1815 void fc_exch_mgr_reset(struct fc_lport *lport, u32 sid, u32 did)  in fc_exch_mgr_reset()  argument
1820 	list_for_each_entry(ema, &lport->ema_list, ema_list) {  in fc_exch_mgr_reset()
1822 			fc_exch_pool_reset(lport,  in fc_exch_mgr_reset()
1836 static struct fc_exch *fc_exch_lookup(struct fc_lport *lport, u32 xid)  in fc_exch_lookup()  argument
1840 	list_for_each_entry(ema, &lport->ema_list, ema_list)  in fc_exch_lookup()
1854 	struct fc_lport *lport;  in fc_exch_els_rec()  local
1865 	lport = fr_dev(rfp);  in fc_exch_els_rec()
1874 	ep = fc_exch_lookup(lport,  in fc_exch_els_rec()
1875 			    sid == fc_host_port_id(lport->host) ? oxid : rxid);  in fc_exch_els_rec()
1883 	fp = fc_frame_alloc(lport, sizeof(*acc));  in fc_exch_els_rec()
1902 	lport->tt.frame_send(lport, fp);  in fc_exch_els_rec()
1977 static struct fc_seq *fc_exch_seq_send(struct fc_lport *lport,  in fc_exch_seq_send()  argument
1992 	ep = fc_exch_alloc(lport, fp);  in fc_exch_seq_send()
2004 	ep->lp = lport;  in fc_exch_seq_send()
2012 	if (ep->xid <= lport->lro_xid && fh->fh_r_ctl == FC_RCTL_DD_UNSOL_CMD) {  in fc_exch_seq_send()
2017 	if (unlikely(lport->tt.frame_send(lport, fp)))  in fc_exch_seq_send()
2047 	struct fc_lport *lport;  in fc_exch_rrq()  local
2052 	lport = ep->lp;  in fc_exch_rrq()
2054 	fp = fc_frame_alloc(lport, sizeof(*rrq));  in fc_exch_rrq()
2070 		       lport->port_id, FC_TYPE_ELS,  in fc_exch_rrq()
2073 	if (fc_exch_seq_send(lport, fp, fc_exch_rrq_resp, NULL, ep,  in fc_exch_rrq()
2074 			     lport->e_d_tov))  in fc_exch_rrq()
2096 	struct fc_lport *lport;  in fc_exch_els_rrq()  local
2103 	lport = fr_dev(fp);  in fc_exch_els_rrq()
2113 	xid = fc_host_port_id(lport->host) == sid ?  in fc_exch_els_rrq()
2115 	ep = fc_exch_lookup(lport, xid);  in fc_exch_els_rrq()
2164 struct fc_exch_mgr_anchor *fc_exch_mgr_add(struct fc_lport *lport,  in fc_exch_mgr_add()  argument
2177 	list_add_tail(&ema->ema_list, &lport->ema_list);  in fc_exch_mgr_add()
2238 struct fc_exch_mgr *fc_exch_mgr_alloc(struct fc_lport *lport,  in fc_exch_mgr_alloc()  argument
2251 		FC_LPORT_DBG(lport, "Invalid min_xid 0x:%x and max_xid 0x:%x\n",  in fc_exch_mgr_alloc()
2307 	if (!fc_exch_mgr_add(lport, mp, match)) {  in fc_exch_mgr_alloc()
2332 void fc_exch_mgr_free(struct fc_lport *lport)  in fc_exch_mgr_free()  argument
2337 	list_for_each_entry_safe(ema, next, &lport->ema_list, ema_list)  in fc_exch_mgr_free()
2350 					      struct fc_lport *lport,  in fc_find_ema()  argument
2361 			return list_entry(lport->ema_list.prev,  in fc_find_ema()
2365 	list_for_each_entry(ema, &lport->ema_list, ema_list) {  in fc_find_ema()
2377 void fc_exch_recv(struct fc_lport *lport, struct fc_frame *fp)  in fc_exch_recv()  argument
2384 	if (!lport || lport->state == LPORT_ST_DISABLED) {  in fc_exch_recv()
2385 		FC_LPORT_DBG(lport, "Receiving frames for an lport that "  in fc_exch_recv()
2392 	ema = fc_find_ema(f_ctl, lport, fh);  in fc_exch_recv()
2394 		FC_LPORT_DBG(lport, "Unable to find Exchange Manager Anchor,"  in fc_exch_recv()
2421 			fc_exch_recv_req(lport, ema->mp, fp);  in fc_exch_recv()
2424 		FC_LPORT_DBG(lport, "dropping invalid frame (eof %x)",  in fc_exch_recv()
2435 int fc_exch_init(struct fc_lport *lport)  in fc_exch_init()  argument
2437 	if (!lport->tt.seq_start_next)  in fc_exch_init()
2438 		lport->tt.seq_start_next = fc_seq_start_next;  in fc_exch_init()
2440 	if (!lport->tt.seq_set_resp)  in fc_exch_init()
2441 		lport->tt.seq_set_resp = fc_seq_set_resp;  in fc_exch_init()
2443 	if (!lport->tt.exch_seq_send)  in fc_exch_init()
2444 		lport->tt.exch_seq_send = fc_exch_seq_send;  in fc_exch_init()
2446 	if (!lport->tt.seq_send)  in fc_exch_init()
2447 		lport->tt.seq_send = fc_seq_send;  in fc_exch_init()
2449 	if (!lport->tt.seq_els_rsp_send)  in fc_exch_init()
2450 		lport->tt.seq_els_rsp_send = fc_seq_els_rsp_send;  in fc_exch_init()
2452 	if (!lport->tt.exch_done)  in fc_exch_init()
2453 		lport->tt.exch_done = fc_exch_done;  in fc_exch_init()
2455 	if (!lport->tt.exch_mgr_reset)  in fc_exch_init()
2456 		lport->tt.exch_mgr_reset = fc_exch_mgr_reset;  in fc_exch_init()
2458 	if (!lport->tt.seq_exch_abort)  in fc_exch_init()
2459 		lport->tt.seq_exch_abort = fc_seq_exch_abort;  in fc_exch_init()
2461 	if (!lport->tt.seq_assign)  in fc_exch_init()
2462 		lport->tt.seq_assign = fc_seq_assign;  in fc_exch_init()
2464 	if (!lport->tt.seq_release)  in fc_exch_init()
2465 		lport->tt.seq_release = fc_seq_release;  in fc_exch_init()