74 	int      alpha;		  /* the fraction of marked bytes */  member
185 		dctcp_data->alpha = V_dctcp_alpha;  in dctcp_after_idle()
216 	 * When alpha is set to 0 in the beginning, DCTCP sender transfers as  in dctcp_cb_init()
218 	 * queueing delay at the switch. When alpha is set to 1, queueing delay  in dctcp_cb_init()
220 	 * Throughput-sensitive applications should have alpha = 0  in dctcp_cb_init()
221 	 * Latency-sensitive applications should have alpha = 1  in dctcp_cb_init()
223 	 * Note: DCTCP draft suggests initial alpha to be 1 but we've decided to  in dctcp_cb_init()
226 	dctcp_data->alpha = V_dctcp_alpha;  in dctcp_cb_init()
281 					dctcp_data->alpha = MAX_ALPHA_VALUE;  in dctcp_cong_signal()
288 					    dctcp_data->alpha) >> (DCTCP_SHIFT+1))),  in dctcp_cong_signal()
380  * Update the fraction of marked bytes represented as 'alpha'.
390 	alpha_prev = dctcp_data->alpha;  in dctcp_update_alpha()
394 	 * Update alpha: alpha = (1 - g) * alpha + g * M.  in dctcp_update_alpha()
402 	 * Alpha must be round to 0 - MAX_ALPHA_VALUE.  in dctcp_update_alpha()
404 	dctcp_data->alpha = ulmin(alpha_prev - (alpha_prev >> V_dctcp_shift_g) +  in dctcp_update_alpha()
408 	/* Initialize internal parameters for next alpha calculation */  in dctcp_update_alpha()
473 SYSCTL_PROC(_net_inet_tcp_cc_dctcp, OID_AUTO, alpha,
476     "dctcp alpha parameter at start of session");