166 net_dim_on_top(struct net_dim *dim)  in net_dim_on_top()  argument
168 	switch (dim->tune_state) {  in net_dim_on_top()
173 		return (dim->steps_left > 1) && (dim->steps_right == 1);  in net_dim_on_top()
175 		return (dim->steps_right > 1) && (dim->steps_left == 1);  in net_dim_on_top()
180 net_dim_turn(struct net_dim *dim)  in net_dim_turn()  argument
182 	switch (dim->tune_state) {  in net_dim_turn()
187 		dim->tune_state = NET_DIM_GOING_LEFT;  in net_dim_turn()
188 		dim->steps_left = 0;  in net_dim_turn()
191 		dim->tune_state = NET_DIM_GOING_RIGHT;  in net_dim_turn()
192 		dim->steps_right = 0;  in net_dim_turn()
198 net_dim_step(struct net_dim *dim)  in net_dim_step()  argument
200 	if (dim->tired == (NET_DIM_PARAMS_NUM_PROFILES * 2))  in net_dim_step()
203 	switch (dim->tune_state) {  in net_dim_step()
208 		if (dim->profile_ix == (NET_DIM_PARAMS_NUM_PROFILES - 1))  in net_dim_step()
210 		dim->profile_ix++;  in net_dim_step()
211 		dim->steps_right++;  in net_dim_step()
214 		if (dim->profile_ix == 0)  in net_dim_step()
216 		dim->profile_ix--;  in net_dim_step()
217 		dim->steps_left++;  in net_dim_step()
221 	dim->tired++;  in net_dim_step()
226 net_dim_park_on_top(struct net_dim *dim)  in net_dim_park_on_top()  argument
228 	dim->steps_right = 0;  in net_dim_park_on_top()
229 	dim->steps_left = 0;  in net_dim_park_on_top()
230 	dim->tired = 0;  in net_dim_park_on_top()
231 	dim->tune_state = NET_DIM_PARKING_ON_TOP;  in net_dim_park_on_top()
235 net_dim_park_tired(struct net_dim *dim)  in net_dim_park_tired()  argument
237 	dim->steps_right = 0;  in net_dim_park_tired()
238 	dim->steps_left = 0;  in net_dim_park_tired()
239 	dim->tune_state = NET_DIM_PARKING_TIRED;  in net_dim_park_tired()
243 net_dim_exit_parking(struct net_dim *dim)  in net_dim_exit_parking()  argument
245 	dim->tune_state = dim->profile_ix ? NET_DIM_GOING_LEFT :  in net_dim_exit_parking()
247 	net_dim_step(dim);  in net_dim_exit_parking()
286     struct net_dim *dim)  in net_dim_decision()  argument
288 	int prev_state = dim->tune_state;  in net_dim_decision()
289 	int prev_ix = dim->profile_ix;  in net_dim_decision()
293 	switch (dim->tune_state) {  in net_dim_decision()
295 		stats_res = net_dim_stats_compare(curr_stats, &dim->prev_stats);  in net_dim_decision()
297 			net_dim_exit_parking(dim);  in net_dim_decision()
301 		dim->tired--;  in net_dim_decision()
302 		if (!dim->tired)  in net_dim_decision()
303 			net_dim_exit_parking(dim);  in net_dim_decision()
308 		stats_res = net_dim_stats_compare(curr_stats, &dim->prev_stats);  in net_dim_decision()
310 			net_dim_turn(dim);  in net_dim_decision()
312 		if (net_dim_on_top(dim)) {  in net_dim_decision()
313 			net_dim_park_on_top(dim);  in net_dim_decision()
316 		step_res = net_dim_step(dim);  in net_dim_decision()
319 			net_dim_park_on_top(dim);  in net_dim_decision()
322 			net_dim_park_tired(dim);  in net_dim_decision()
330 	    (dim->tune_state != NET_DIM_PARKING_ON_TOP))  in net_dim_decision()
331 		dim->prev_stats = *curr_stats;  in net_dim_decision()
333 	return dim->profile_ix != prev_ix;  in net_dim_decision()
372 net_dim(struct net_dim *dim,  in net_dim()  argument
379 	dim->event_ctr++;  in net_dim()
381 	switch (dim->state) {  in net_dim()
384 		    dim->event_ctr,  in net_dim()
385 		    dim->start_sample.event_ctr);  in net_dim()
388 		net_dim_sample(dim->event_ctr, packets, bytes, &end_sample);  in net_dim()
389 		net_dim_calc_stats(&dim->start_sample, &end_sample,  in net_dim()
391 		if (net_dim_decision(&curr_stats, dim)) {  in net_dim()
392 			dim->state = NET_DIM_APPLY_NEW_PROFILE;  in net_dim()
393 			schedule_work(&dim->work);  in net_dim()
398 		net_dim_sample(dim->event_ctr, packets, bytes, &dim->start_sample);  in net_dim()
399 		dim->state = NET_DIM_MEASURE_IN_PROGRESS;  in net_dim()