infiniband/core/smi.c

45 						u8 *hop_ptr, u8 hop_cnt,
59 		if (hop_cnt && *hop_ptr == 0) {
60 			(*hop_ptr)++;
61 			return (initial_path[*hop_ptr] ==
66 		if (*hop_ptr && *hop_ptr < hop_cnt) {
71 			(*hop_ptr)++;
72 			return (initial_path[*hop_ptr] ==
77 		if (*hop_ptr == hop_cnt) {
79 			(*hop_ptr)++;
85 		/* C14-9:4 -- hop_ptr = hop_cnt + 1 -> give to SMA/SM */
87 		return (*hop_ptr == hop_cnt + 1 ? IB_SMI_HANDLE : IB_SMI_DISCARD);
91 		if (hop_cnt && *hop_ptr == hop_cnt + 1) {
92 			(*hop_ptr)--;
93 			return (return_path[*hop_ptr] ==
98 		if (2 <= *hop_ptr && *hop_ptr <= hop_cnt) {
102 			(*hop_ptr)--;
103 			return (return_path[*hop_ptr] ==
108 		if (*hop_ptr == 1) {
109 			(*hop_ptr)--;
116 		/* C14-13:4 -- hop_ptr = 0 -> should have gone to SM */
117 		if (*hop_ptr == 0)
133 					&smp->hop_ptr, smp->hop_cnt,
145 					&smp->hop_ptr, smp->hop_cnt,
157 						u8 *hop_ptr, u8 hop_cnt,
170 		/* C14-9:1 -- sender should have incremented hop_ptr */
171 		if (hop_cnt && *hop_ptr == 0)
175 		if (*hop_ptr && *hop_ptr < hop_cnt) {
179 			return_path[*hop_ptr] = port_num;
180 			/* hop_ptr updated when sending */
181 			return (initial_path[*hop_ptr+1] <= phys_port_cnt ?
186 		if (*hop_ptr == hop_cnt) {
188 				return_path[*hop_ptr] = port_num;
189 			/* hop_ptr updated when sending */
196 		/* C14-9:4 -- hop_ptr = hop_cnt + 1 -> give to SMA/SM */
198 		return (*hop_ptr == hop_cnt + 1 ? IB_SMI_HANDLE : IB_SMI_DISCARD);
203 		if (hop_cnt && *hop_ptr == hop_cnt + 1) {
204 			(*hop_ptr)--;
205 			return (return_path[*hop_ptr] ==
210 		if (2 <= *hop_ptr && *hop_ptr <= hop_cnt) {
214 			/* hop_ptr updated when sending */
215 			return (return_path[*hop_ptr-1] <= phys_port_cnt ?
220 		if (*hop_ptr == 1) {
222 				/* giving SMP to SM - update hop_ptr */
223 				(*hop_ptr)--;
226 			/* hop_ptr updated when sending */
230 		/* C14-13:4 -- hop_ptr = 0 -> give to SM */
232 		return (*hop_ptr == 0 ? IB_SMI_HANDLE : IB_SMI_DISCARD);
244 					&smp->hop_ptr, smp->hop_cnt,
260 					&smp->hop_ptr, smp->hop_cnt,
270 static enum smi_forward_action __smi_check_forward_dr_smp(u8 hop_ptr, u8 hop_cnt,
277 		if (hop_ptr && hop_ptr < hop_cnt)
281 		if (hop_ptr == hop_cnt)
285 		/* C14-9:4 -- hop_ptr = hop_cnt + 1 -> give to SMA/SM */
286 		if (hop_ptr == hop_cnt + 1)
290 		if (2 <= hop_ptr && hop_ptr <= hop_cnt)
294 		if (hop_ptr == 1)
304 	return __smi_check_forward_dr_smp(smp->hop_ptr, smp->hop_cnt,
312 	return __smi_check_forward_dr_smp(smp->hop_ptr, smp->hop_cnt,
326 	return (!ib_get_smp_direction(smp) ? smp->initial_path[smp->hop_ptr+1] :
327 		smp->return_path[smp->hop_ptr-1]);
336 	return !opa_get_smp_direction(smp) ? smp->route.dr.initial_path[smp->hop_ptr+1] :
337 		smp->route.dr.return_path[smp->hop_ptr-1];