13  * into the chain number. This is UAPI.
24 /* PSFP chain and block ID */
28 static int ocelot_chain_to_block(int chain, bool ingress)  in ocelot_chain_to_block()  argument
33 		if (chain == 0)  in ocelot_chain_to_block()
38 	/* Backwards compatibility with older, single-chain tc-flower  in ocelot_chain_to_block()
41 	if (chain == 0)  in ocelot_chain_to_block()
45 		if (chain == VCAP_IS1_CHAIN(lookup))  in ocelot_chain_to_block()
50 			if (chain == VCAP_IS2_CHAIN(lookup, pag))  in ocelot_chain_to_block()
53 	if (chain == OCELOT_PSFP_CHAIN)  in ocelot_chain_to_block()
59 /* Caller must ensure this is a valid IS1 or IS2 chain first,
62 static int ocelot_chain_to_lookup(int chain)  in ocelot_chain_to_lookup()  argument
64 	/* Backwards compatibility with older, single-chain tc-flower  in ocelot_chain_to_lookup()
67 	if (chain == 0)  in ocelot_chain_to_lookup()
70 	return (chain / VCAP_LOOKUP) % 10;  in ocelot_chain_to_lookup()
73 /* Caller must ensure this is a valid IS2 chain first,
76 static int ocelot_chain_to_pag(int chain)  in ocelot_chain_to_pag()  argument
80 	/* Backwards compatibility with older, single-chain tc-flower  in ocelot_chain_to_pag()
83 	if (chain == 0)  in ocelot_chain_to_pag()
86 	lookup = ocelot_chain_to_lookup(chain);  in ocelot_chain_to_pag()
88 	/* calculate PAG value as chain index relative to the first PAG */  in ocelot_chain_to_pag()
89 	return chain - VCAP_IS2_CHAIN(lookup, 0);  in ocelot_chain_to_pag()
92 static bool ocelot_is_goto_target_valid(int goto_target, int chain,  in ocelot_is_goto_target_valid()  argument
102 	if (chain == 0)  in ocelot_is_goto_target_valid()
111 	if (chain == VCAP_IS1_CHAIN(0))  in ocelot_is_goto_target_valid()
114 	if (chain == VCAP_IS1_CHAIN(1))  in ocelot_is_goto_target_valid()
119 	 * value encoding a VCAP IS2 target chain.  in ocelot_is_goto_target_valid()
121 	if (chain == VCAP_IS1_CHAIN(2)) {  in ocelot_is_goto_target_valid()
133 		if (chain == VCAP_IS2_CHAIN(0, pag))  in ocelot_is_goto_target_valid()
138 		if (chain == VCAP_IS2_CHAIN(1, pag))  in ocelot_is_goto_target_valid()
145 ocelot_find_vcap_filter_that_points_at(struct ocelot *ocelot, int chain)  in ocelot_find_vcap_filter_that_points_at()  argument
151 	block_id = ocelot_chain_to_block(chain, true);  in ocelot_find_vcap_filter_that_points_at()
160 			    filter->goto_target == chain)  in ocelot_find_vcap_filter_that_points_at()
165 		if (filter->goto_target == chain)  in ocelot_find_vcap_filter_that_points_at()
240 	int i, chain, egress_port;  in ocelot_flower_parse_action()  local
249 	chain = f->common.chain_index;  in ocelot_flower_parse_action()
250 	filter->block_id = ocelot_chain_to_block(chain, ingress);  in ocelot_flower_parse_action()
252 		NL_SET_ERR_MSG_MOD(extack, "Cannot offload to this chain");  in ocelot_flower_parse_action()
256 		filter->lookup = ocelot_chain_to_lookup(chain);  in ocelot_flower_parse_action()
258 		filter->pag = ocelot_chain_to_pag(chain);  in ocelot_flower_parse_action()
490 						   "Gate action can only be offloaded to PSFP chain");  in ocelot_flower_parse_action()
503 		    chain == 0 || filter->block_id == PSFP_BLOCK_ID) {  in ocelot_flower_parse_action()
511 	if (!ocelot_is_goto_target_valid(filter->goto_target, chain, ingress) &&  in ocelot_flower_parse_action()
870 	int chain = f->common.chain_index;  in ocelot_cls_flower_replace()  local
873 	if (chain && !ocelot_find_vcap_filter_that_points_at(ocelot, chain)) {  in ocelot_cls_flower_replace()
874 		NL_SET_ERR_MSG_MOD(extack, "No default GOTO action points to this chain");  in ocelot_cls_flower_replace()
878 	block_id = ocelot_chain_to_block(chain, ingress);  in ocelot_cls_flower_replace()
880 		NL_SET_ERR_MSG_MOD(extack, "Cannot offload to this chain");  in ocelot_cls_flower_replace()
926 		NL_SET_ERR_MSG_MOD(extack, "PSFP chain is not supported in HW");  in ocelot_cls_flower_replace()