168 net_dim_on_top(struct net_dim *dim)  in net_dim_on_top()  argument
170 	switch (dim->tune_state) {  in net_dim_on_top()
175 		return (dim->steps_left > 1) && (dim->steps_right == 1);  in net_dim_on_top()
177 		return (dim->steps_right > 1) && (dim->steps_left == 1);  in net_dim_on_top()
182 net_dim_turn(struct net_dim *dim)  in net_dim_turn()  argument
184 	switch (dim->tune_state) {  in net_dim_turn()
189 		dim->tune_state = NET_DIM_GOING_LEFT;  in net_dim_turn()
190 		dim->steps_left = 0;  in net_dim_turn()
193 		dim->tune_state = NET_DIM_GOING_RIGHT;  in net_dim_turn()
194 		dim->steps_right = 0;  in net_dim_turn()
200 net_dim_step(struct net_dim *dim)  in net_dim_step()  argument
202 	if (dim->tired == (NET_DIM_PARAMS_NUM_PROFILES * 2))  in net_dim_step()
205 	switch (dim->tune_state) {  in net_dim_step()
210 		if (dim->profile_ix == (NET_DIM_PARAMS_NUM_PROFILES - 1))  in net_dim_step()
212 		dim->profile_ix++;  in net_dim_step()
213 		dim->steps_right++;  in net_dim_step()
216 		if (dim->profile_ix == 0)  in net_dim_step()
218 		dim->profile_ix--;  in net_dim_step()
219 		dim->steps_left++;  in net_dim_step()
223 	dim->tired++;  in net_dim_step()
228 net_dim_park_on_top(struct net_dim *dim)  in net_dim_park_on_top()  argument
230 	dim->steps_right = 0;  in net_dim_park_on_top()
231 	dim->steps_left = 0;  in net_dim_park_on_top()
232 	dim->tired = 0;  in net_dim_park_on_top()
233 	dim->tune_state = NET_DIM_PARKING_ON_TOP;  in net_dim_park_on_top()
237 net_dim_park_tired(struct net_dim *dim)  in net_dim_park_tired()  argument
239 	dim->steps_right = 0;  in net_dim_park_tired()
240 	dim->steps_left = 0;  in net_dim_park_tired()
241 	dim->tune_state = NET_DIM_PARKING_TIRED;  in net_dim_park_tired()
245 net_dim_exit_parking(struct net_dim *dim)  in net_dim_exit_parking()  argument
247 	dim->tune_state = dim->profile_ix ? NET_DIM_GOING_LEFT :  in net_dim_exit_parking()
249 	net_dim_step(dim);  in net_dim_exit_parking()
288     struct net_dim *dim)  in net_dim_decision()  argument
290 	int prev_state = dim->tune_state;  in net_dim_decision()
291 	int prev_ix = dim->profile_ix;  in net_dim_decision()
295 	switch (dim->tune_state) {  in net_dim_decision()
297 		stats_res = net_dim_stats_compare(curr_stats, &dim->prev_stats);  in net_dim_decision()
299 			net_dim_exit_parking(dim);  in net_dim_decision()
303 		dim->tired--;  in net_dim_decision()
304 		if (!dim->tired)  in net_dim_decision()
305 			net_dim_exit_parking(dim);  in net_dim_decision()
310 		stats_res = net_dim_stats_compare(curr_stats, &dim->prev_stats);  in net_dim_decision()
312 			net_dim_turn(dim);  in net_dim_decision()
314 		if (net_dim_on_top(dim)) {  in net_dim_decision()
315 			net_dim_park_on_top(dim);  in net_dim_decision()
318 		step_res = net_dim_step(dim);  in net_dim_decision()
321 			net_dim_park_on_top(dim);  in net_dim_decision()
324 			net_dim_park_tired(dim);  in net_dim_decision()
332 	    (dim->tune_state != NET_DIM_PARKING_ON_TOP))  in net_dim_decision()
333 		dim->prev_stats = *curr_stats;  in net_dim_decision()
335 	return dim->profile_ix != prev_ix;  in net_dim_decision()
374 net_dim(struct net_dim *dim,  in net_dim()  argument
381 	dim->event_ctr++;  in net_dim()
383 	switch (dim->state) {  in net_dim()
386 		    dim->event_ctr,  in net_dim()
387 		    dim->start_sample.event_ctr);  in net_dim()
390 		net_dim_sample(dim->event_ctr, packets, bytes, &end_sample);  in net_dim()
391 		net_dim_calc_stats(&dim->start_sample, &end_sample,  in net_dim()
393 		if (net_dim_decision(&curr_stats, dim)) {  in net_dim()
394 			dim->state = NET_DIM_APPLY_NEW_PROFILE;  in net_dim()
395 			schedule_work(&dim->work);  in net_dim()
400 		net_dim_sample(dim->event_ctr, packets, bytes, &dim->start_sample);  in net_dim()
401 		dim->state = NET_DIM_MEASURE_IN_PROGRESS;  in net_dim()