16 static void tb_dump_hop(const struct tb_path_hop *hop, const struct tb_regs_hop *regs)  in tb_dump_hop()  argument
18 	const struct tb_port *port = hop->in_port;  in tb_dump_hop()
21 		    hop->in_hop_index, regs->out_port, regs->next_hop);  in tb_dump_hop()
38 	struct tb_regs_hop hop;  in tb_path_find_dst_port()  local
48 		ret = tb_port_read(port, &hop, TB_CFG_HOPS, 2 * hopid, 2);  in tb_path_find_dst_port()
54 		if (!hop.enable)  in tb_path_find_dst_port()
57 		out_port = &sw->ports[hop.out_port];  in tb_path_find_dst_port()
58 		hopid = hop.next_hop;  in tb_path_find_dst_port()
105 	struct tb_regs_hop hop;  in tb_path_discover()  local
132 		ret = tb_port_read(p, &hop, TB_CFG_HOPS, 2 * h, 2);  in tb_path_discover()
138 		/* If the hop is not enabled we got an incomplete path */  in tb_path_discover()
139 		if (!hop.enable)  in tb_path_discover()
142 		out_port = &sw->ports[hop.out_port];  in tb_path_discover()
146 		h = hop.next_hop;  in tb_path_discover()
174 		ret = tb_port_read(p, &hop, TB_CFG_HOPS, 2 * h, 2);  in tb_path_discover()
183 		out_port = &sw->ports[hop.out_port];  in tb_path_discover()
184 		next_hop = hop.next_hop;  in tb_path_discover()
257 	/* Each hop takes two ports */  in tb_path_alloc()
351 		const struct tb_path_hop *hop = &path->hops[i];  in tb_path_free()  local
353 		if (hop->in_port)  in tb_path_free()
354 			tb_port_release_in_hopid(hop->in_port,  in tb_path_free()
355 						 hop->in_hop_index);  in tb_path_free()
356 		if (hop->out_port)  in tb_path_free()
357 			tb_port_release_out_hopid(hop->out_port,  in tb_path_free()
358 						  hop->next_hop_index);  in tb_path_free()
373 				     "nfc credits deallocation failed for hop %d\n",  in __tb_path_deallocate_nfc()
381 	struct tb_regs_hop hop;  in __tb_path_deactivate_hop()  local
386 	ret = tb_port_read(port, &hop, TB_CFG_HOPS, 2 * hop_index, 2);  in __tb_path_deactivate_hop()
391 	if (!hop.enable)  in __tb_path_deactivate_hop()
394 	hop.enable = 0;  in __tb_path_deactivate_hop()
396 	ret = tb_port_write(port, &hop, TB_CFG_HOPS, 2 * hop_index, 2);  in __tb_path_deactivate_hop()
403 		ret = tb_port_read(port, &hop, TB_CFG_HOPS, 2 * hop_index, 2);  in __tb_path_deactivate_hop()
407 		if (!hop.pending) {  in __tb_path_deactivate_hop()
416 					hop.ingress_fc = 0;  in __tb_path_deactivate_hop()
417 					hop.ingress_shared_buffer = 0;  in __tb_path_deactivate_hop()
419 				hop.egress_fc = 0;  in __tb_path_deactivate_hop()
420 				hop.egress_shared_buffer = 0;  in __tb_path_deactivate_hop()
422 				return tb_port_write(port, &hop, TB_CFG_HOPS,  in __tb_path_deactivate_hop()
445 				     "hop deactivation failed for hop %d, index %d\n",  in __tb_path_deactivate_hops()
471  * Activate a path starting with the last hop and iterating backwards. The
514 		struct tb_regs_hop hop = { 0 };  in tb_path_activate()  local
521 		hop.next_hop = path->hops[i].next_hop_index;  in tb_path_activate()
522 		hop.out_port = path->hops[i].out_port->port;  in tb_path_activate()
523 		hop.initial_credits = path->hops[i].initial_credits;  in tb_path_activate()
524 		hop.unknown1 = 0;  in tb_path_activate()
525 		hop.enable = 1;  in tb_path_activate()
531 		hop.weight = path->weight;  in tb_path_activate()
532 		hop.unknown2 = 0;  in tb_path_activate()
533 		hop.priority = path->priority;  in tb_path_activate()
534 		hop.drop_packages = path->drop_packages;  in tb_path_activate()
535 		hop.counter = path->hops[i].in_counter_index;  in tb_path_activate()
536 		hop.counter_enable = path->hops[i].in_counter_index != -1;  in tb_path_activate()
537 		hop.ingress_fc = path->ingress_fc_enable & in_mask;  in tb_path_activate()
538 		hop.egress_fc = path->egress_fc_enable & out_mask;  in tb_path_activate()
539 		hop.ingress_shared_buffer = path->ingress_shared_buffer  in tb_path_activate()
541 		hop.egress_shared_buffer = path->egress_shared_buffer  in tb_path_activate()
543 		hop.unknown3 = 0;  in tb_path_activate()
545 		tb_port_dbg(path->hops[i].in_port, "Writing hop %d\n", i);  in tb_path_activate()
546 		tb_dump_hop(&path->hops[i], &hop);  in tb_path_activate()
547 		res = tb_port_write(path->hops[i].in_port, &hop, TB_CFG_HOPS,  in tb_path_activate()