infiniband/core/smi.c

49 	u8 hop_ptr, hop_cnt;
51 	hop_ptr = smp->hop_ptr;
57 		if (hop_cnt && hop_ptr == 0) {
58 			smp->hop_ptr++;
59 			return (smp->initial_path[smp->hop_ptr] ==
64 		if (hop_ptr && hop_ptr < hop_cnt) {
69 			smp->hop_ptr++;
70 			return (smp->initial_path[smp->hop_ptr] ==
75 		if (hop_ptr == hop_cnt) {
77 			smp->hop_ptr++;
83 		/* C14-9:4 -- hop_ptr = hop_cnt + 1 -> give to SMA/SM */
85 		return (hop_ptr == hop_cnt + 1 ? IB_SMI_HANDLE : IB_SMI_DISCARD);
89 		if (hop_cnt && hop_ptr == hop_cnt + 1) {
90 			smp->hop_ptr--;
91 			return (smp->return_path[smp->hop_ptr] ==
96 		if (2 <= hop_ptr && hop_ptr <= hop_cnt) {
100 			smp->hop_ptr--;
101 			return (smp->return_path[smp->hop_ptr] ==
106 		if (hop_ptr == 1) {
107 			smp->hop_ptr--;
114 		/* C14-13:4 -- hop_ptr = 0 -> should have gone to SM */
115 		if (hop_ptr == 0)
130 	u8 hop_ptr, hop_cnt;
132 	hop_ptr = smp->hop_ptr;
137 		/* C14-9:1 -- sender should have incremented hop_ptr */
138 		if (hop_cnt && hop_ptr == 0)
142 		if (hop_ptr && hop_ptr < hop_cnt) {
146 			smp->return_path[hop_ptr] = port_num;
147 			/* smp->hop_ptr updated when sending */
148 			return (smp->initial_path[hop_ptr+1] <= phys_port_cnt ?
153 		if (hop_ptr == hop_cnt) {
155 				smp->return_path[hop_ptr] = port_num;
156 			/* smp->hop_ptr updated when sending */
163 		/* C14-9:4 -- hop_ptr = hop_cnt + 1 -> give to SMA/SM */
165 		return (hop_ptr == hop_cnt + 1 ? IB_SMI_HANDLE : IB_SMI_DISCARD);
170 		if (hop_cnt && hop_ptr == hop_cnt + 1) {
171 			smp->hop_ptr--;
172 			return (smp->return_path[smp->hop_ptr] ==
177 		if (2 <= hop_ptr && hop_ptr <= hop_cnt) {
181 			/* smp->hop_ptr updated when sending */
182 			return (smp->return_path[hop_ptr-1] <= phys_port_cnt ?
187 		if (hop_ptr == 1) {
189 				/* giving SMP to SM - update hop_ptr */
190 				smp->hop_ptr--;
193 			/* smp->hop_ptr updated when sending */
198 		/* C14-13:4 -- hop_ptr = 0 -> give to SM */
200 		return (hop_ptr == 0 ? IB_SMI_HANDLE : IB_SMI_DISCARD);
206 	u8 hop_ptr, hop_cnt;
208 	hop_ptr = smp->hop_ptr;
213 		if (hop_ptr && hop_ptr < hop_cnt)
217 		if (hop_ptr == hop_cnt)
221 		/* C14-9:4 -- hop_ptr = hop_cnt + 1 -> give to SMA/SM */
222 		if (hop_ptr == hop_cnt + 1)
226 		if (2 <= hop_ptr && hop_ptr <= hop_cnt)
230 		if (hop_ptr == 1)
243 	return (!ib_get_smp_direction(smp) ? smp->initial_path[smp->hop_ptr+1] :
244 		smp->return_path[smp->hop_ptr-1]);