infiniband/core/smi.c

49 	u8 hop_ptr, hop_cnt;
51 	hop_ptr = smp->hop_ptr;
61 		if (hop_cnt && hop_ptr == 0) {
62 			smp->hop_ptr++;
63 			return (smp->initial_path[smp->hop_ptr] ==
68 		if (hop_ptr && hop_ptr < hop_cnt) {
73 			smp->hop_ptr++;
74 			return (smp->initial_path[smp->hop_ptr] ==
79 		if (hop_ptr == hop_cnt) {
81 			smp->hop_ptr++;
87 		/* C14-9:4 -- hop_ptr = hop_cnt + 1 -> give to SMA/SM */
89 		return (hop_ptr == hop_cnt + 1 ? IB_SMI_HANDLE : IB_SMI_DISCARD);
93 		if (hop_cnt && hop_ptr == hop_cnt + 1) {
94 			smp->hop_ptr--;
95 			return (smp->return_path[smp->hop_ptr] ==
100 		if (2 <= hop_ptr && hop_ptr <= hop_cnt) {
104 			smp->hop_ptr--;
105 			return (smp->return_path[smp->hop_ptr] ==
110 		if (hop_ptr == 1) {
111 			smp->hop_ptr--;
118 		/* C14-13:4 -- hop_ptr = 0 -> should have gone to SM */
119 		if (hop_ptr == 0)
134 	u8 hop_ptr, hop_cnt;
136 	hop_ptr = smp->hop_ptr;
145 		/* C14-9:1 -- sender should have incremented hop_ptr */
146 		if (hop_cnt && hop_ptr == 0)
150 		if (hop_ptr && hop_ptr < hop_cnt) {
154 			smp->return_path[hop_ptr] = port_num;
155 			/* smp->hop_ptr updated when sending */
156 			return (smp->initial_path[hop_ptr+1] <= phys_port_cnt ?
161 		if (hop_ptr == hop_cnt) {
163 				smp->return_path[hop_ptr] = port_num;
164 			/* smp->hop_ptr updated when sending */
171 		/* C14-9:4 -- hop_ptr = hop_cnt + 1 -> give to SMA/SM */
173 		return (hop_ptr == hop_cnt + 1 ? IB_SMI_HANDLE : IB_SMI_DISCARD);
178 		if (hop_cnt && hop_ptr == hop_cnt + 1) {
179 			smp->hop_ptr--;
180 			return (smp->return_path[smp->hop_ptr] ==
185 		if (2 <= hop_ptr && hop_ptr <= hop_cnt) {
189 			/* smp->hop_ptr updated when sending */
190 			return (smp->return_path[hop_ptr-1] <= phys_port_cnt ?
195 		if (hop_ptr == 1) {
197 				/* giving SMP to SM - update hop_ptr */
198 				smp->hop_ptr--;
201 			/* smp->hop_ptr updated when sending */
206 		/* C14-13:4 -- hop_ptr = 0 -> give to SM */
208 		return (hop_ptr == 0 ? IB_SMI_HANDLE : IB_SMI_DISCARD);
214 	u8 hop_ptr, hop_cnt;
216 	hop_ptr = smp->hop_ptr;
221 		if (hop_ptr && hop_ptr < hop_cnt)
225 		if (hop_ptr == hop_cnt)
229 		/* C14-9:4 -- hop_ptr = hop_cnt + 1 -> give to SMA/SM */
230 		if (hop_ptr == hop_cnt + 1)
234 		if (2 <= hop_ptr && hop_ptr <= hop_cnt)
238 		if (hop_ptr == 1)
251 	return (!ib_get_smp_direction(smp) ? smp->initial_path[smp->hop_ptr+1] :
252 		smp->return_path[smp->hop_ptr-1]);